In this task, you're given the title of a five-sentence story, the first four sentences, and two options for the fifth sentence as a and b. Your job is to pick the sentence option that seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Example input: Title: Marcus Buys Khakis. Sentence 1: Marcus needed clothing for a business casual event. Sentence 2: All of his clothes were either too formal or too casual. Sentence 3: He decided to buy a pair of khakis. Sentence 4: The pair he bought fit him perfectly. Choices: a. Marcus was happy to have the right clothes for the event. b. He left in a huff for having his ideas mocked.
Example output: a
Example explanation: Marcus is buying clothes for a business event and not presenting an idea.
Q: Title: Cookout. Sentence 1: Sally decided to have a cook out over the weekend. Sentence 2: She invited some of her friends and family to join her. Sentence 3: Sally took a trip to the store to buy her ingredients. Sentence 4: She decided on making kabobs and corn on the cob. Choices: a. He ran away. b. The evening was a success and they all loved her cooking!
A:

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
b