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.
Q: Title: Band. Sentence 1: Benny likes music. Sentence 2: He decided to learn to play the trumpet. Sentence 3: His school band needed more trumpet players. Sentence 4: Benny joined his school band. Choices: a. He is very happy with his decision. b. Martha was happy to have made a new animal friend.
A:
a