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.
Q: Title: Urine. Sentence 1: The cat smelled a shoe. Sentence 2: It smelled like another cat. Sentence 3: The cat urinated on the shoe. Sentence 4: The owner put the shoe on later. Choices: a. He was surprised it was soaked with urine. b. He threw up and never called the girl back.
A:
b