TASK DEFINITION: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D". 
PROBLEM: [header] How to clean a vornado fan [title] Clean out dust in the outer grills using a vacuum cleaner brush. [step] You can use a brush attachment on a vacuum cleaner to clean out all of the dust from the outer grills. Make sure the fan is unplugged before vacuuming. <sep> (A) [title] Place a cleaning rod in each section of the fan and squirt some cleaning fluid through each rod. [step] Avoid getting any grease in the vents or rest tray. (B) Some of the cleaner should be removed from the outside if you use a cloth and brush as cleaning instructions are laid out in the manual. [substeps] Avoid cleaning the outer grills with dust because it can detach some of the insulation and contribute to the fan's cooling. (C) Wipe down the inside of the cover every few minutes so you can put the fan back together. [substeps] For maximum efficiency, you should wash your vornado fan at least once a month, which is right after each dry run. (D) Go slowly when vacuuming to ensure you clean out as much dust as possible. [substeps] This will only clean the outer part of the fan, not the inside blades.

SOLUTION: D

PROBLEM: [header] How to help stop police brutality [title] Share news stories about police brutality. [step] When you see good-quality articles about police brutality, especially those connected to recent events, share them on social media sites like facebook and twitter. This will help keep the topic fresh in the minds of your friends and followers. <sep> (A) You can even make a news page dedicated to your precinct or neighborhood, and give people posted online about police brutality relevant to your neighborhood. Cover these fan-fiction very well by understanding the facts that are relevant to your area. (B) [substeps] It can also be a great way to reach out to other people about police brutality. Many people will be sympathetic, even if they don't fully understand the danger or the costs for criminal action, and it can help cut down on potentially startling images of violence and embarrassment. (C) The good articles, and the news you've already shared, are also more likely to be read, because you'll be a link between the good and the bad. [substeps] Posting good news is key to providing easy access to world wide web news databases. (D) [substeps] Before posting an article, double-check the publisher and writer to make sure it isn't a form of fake news. Make sure you post about non-political things as well, that way people don't tune you out.

SOLUTION: D

PROBLEM: [header] How to advertise on yahoo finance [title] Calculate your advertising budget. [step] Leave room for marginal adjustments such as fluctuating advertising rates and seasonal considerations. Plan your budget according to the type of business you're marketing. <sep> (A) You can address seasonal concerns, notice when technological institutions or new businesses are expanding, and so on. [substeps] Streamline your advertising by giving specific attention to any negative events that may reoccur in the future. (B) Over time, customers may thin out, hoping you will offer more than they need. [substeps] Paper ads can be expensive-typically less than $3 , 000-and you might find that more clients and relationships exist on your site that are low-cost. (C) For example, if your company specializes in financial services like income tax preparation, the majority of your advertising budget should be spent during the first quarter of the year, before the middle of april. [substeps] Determine the percentage of your budget to be designated for advertising on yahoo finance, and how much will be spent on other media outlets like radio, newspaper, or other internet sites. (D) [substeps] Consider raising your advertising budget after a major business expense will be likely. This will help you reduce the amount of expenses you might incur later on.

SOLUTION:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
C

