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: Sidetracked. Sentence 1: Mike wanted to be a lawyer. Sentence 2: So he worked hard in high school to get into a good college. Sentence 3: But during college, Mike became stressed out and turned to alcohol. Sentence 4: And he ended up moving back home. Choices: a. Mike decided to pursue an easier career. b. Jeremy finally picked another chocolate bar and paid for it.
b