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 does not connect with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes less sense.
One example: 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.
Solution is here: b
Explanation: Marcus is buying clothes for a business event and not presenting an idea.

Now, solve this: Title: Missing in Action. Sentence 1: Alan went to his family's party. Sentence 2: Although it was boring, he enjoyed eating the food. Sentence 3: After he was full, he decided to leave without telling anyone. Sentence 4: The family was trying to look for Alan when they noticed. Choices: a. Since that day we never let him drive a motorcycle. b. When his mom came home, she yelled at him.
Solution:
a