Instructions: 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.
Input: Title: Martin's Beer. Sentence 1: Martin decided to brew his own beer. Sentence 2: He bought everything he needed. Sentence 3: His first beer was not very good. Sentence 4: His friends got sick from it. Choices: a. He was very unhappy. b. Jessica then went home and read the books all within a week.
Output:
a