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: That's the ticket.. Sentence 1: Melinda wanted go and see a band on Saturday night with her friends. Sentence 2: She and her friend mowed 30 lawns to get money for tickets. Sentence 3: The money was stolen from her locker at school. Sentence 4: She told the entire school what had happened. Choices: a. A bunch of her classmates pitched in enough money to buy her tickets. b. Hailey did the dishes for her mother before they left for the day.
b