Detailed 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.
Q: Title: Reunited. Sentence 1: Paula and Roy met at summer camp when they were young teens. Sentence 2: Roy wasn't allowed to return the next summer. Sentence 3: He thought about Paula all through his life. Sentence 4: When he was thirty, he moved to California. Choices: a. He cheated on her countless times and then broke up with her. b. At a coffee shop, he ran into Paula, who was thrilled to see him.
A:
b