Q: 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: Motorcycle. Sentence 1: Tim has always loved motorcycles. Sentence 2: He decided to save his money so he could buy one. Sentence 3: When he finally had enough money he bought a shiny red motorcycle. Sentence 4: He rode the motorcycle all over town to show it off. Choices: a. Tim was happy he finally bought a motorcycle. b. Greg was mad because he had to start all over again.
A:
b