Given the task definition and input, reply with output. 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.

Title: Rocco in Hollywood. Sentence 1: Rocco left Kansas to make it in New York. Sentence 2: He missed his old girlfriend something terrible. Sentence 3: His new friend Bob kept introducing him to girls. Sentence 4: It took some time, but Rocco started dating again. Choices: a. By the end of the year, he was the top earner in the office. b. He still missed his ex, but things were looking up for him.
a