Detailed Instructions: In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.
See one example below:
Problem: Article: Homework can put you in a bad mood , and that might actually be a good thing. Researchers from the University of Plymouth in England doubted whether mood might affect the way kids learn. To find out the answer, they did two experiments with children. The first experiment tested 30 kids. Someshapes were hidden inside a different, larger picture. The kids had to find the small shapes while sitting in a room with either cheerful or sad music playing in the background. To test their mood, the scientists asked the kids to point to one of five faces, from happy to sad. Children who listened to cheerful music tended to point to the smiley faces while the others pointed to the unhappy ones. The researchers found that sad kids took at least a second less to find the small shapes. They also found an average of three or four more shapes. In the second experiment, 61 children watched one of two scenes from a film. One scene was happy, and the other was sad. Just like in the first experiment, kids who saw the sad scene acted better compared to the others. The researchers guessed that feeling down makes people more likely to focus on a problem or difficult situation. Not all scientists agree with them, however. Other studies argued that maybe, that cheerful music in the first experiment distracted kids from finding shapes. While scientists work on finding out the answers, it still might be wise to choose when to do your tasks according to your mood. After eating a delicious ice cream, for example, write an essay. 
 Question: Researchers did experiments on kids in order to find out _ . 
 Options: (A) how they really feel when they are learning (B) whether mood affects their learning ability (C) what methods are easy for kids to learn (D) the relationship between sadness and happiness
Solution: B
Explanation: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment. So, B is the correct answer.

Problem: Article: Ticket price increases at HK Disney Source:Xinhua | 02--05--2009 11:39 Hong Kong Disneyland announced on Tuesday it will raise weekday admission prices for mainland and overseas tourists by about 19 percent.But Hong Kong residents and tourists who purchase tickets through travel agents can still enjoy the old prices until June 30. A one-day admission will cost HK $350($45)for adults and HK $250 for children aged up to 11 from Monday, the previous charges for weekends.Adults were previously admitted for HK $295 and children HK $210. A Hong Kong Disneyland spokesman said the park does not expect the new pricing structure to have an immediate impact on attendances, as research shows guests choose when to visit the attraction based on time available rather than ticket prices.But the hikes(the rise of prices)drew immediate criticism from the industry.The greater tourism industry fears it may harm mainlanders willingness to visit Hong Kong. Joseph Tung Yao-chung, executive director of Travel Industry Council of Hong Kong, said the decision was unwise in the current financial climate.He also urged the company to rethink its decision, during an interview with Southern Metropolis Daily. 
 Question: On September 10 of 2009(weekday),  Hong Kong  residents and tourists will have to spend  _  buying three children tickets. 
 Options: (A) HK $360 (B) $ 360 (C) HK $750 (D) HK $885
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