You will be given a definition of a task first, then some input of the task.
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: Dirty Job. Sentence 1: Jared was having a tough day. Sentence 2: He had to move all of the construction equipment today. Sentence 3: It wasn't a problem, but his truck got stuck in the mud near his home. Sentence 4: He asked his friend if he could tow him out before it sunk in deeper. Choices: a. Shortly, his friend arrived and they both managed to free his truck. b. I had gone to close a sale.
Output:
b