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: Car Pick Up. Sentence 1: Kate went to pick up her rental car. Sentence 2: She reserved an SUV online. Sentence 3: But they had none in stock when she arrived. Sentence 4: Kate was incredibly upset. Choices: a. April and Andy are now happily married. b. But there was nothing she could do about it.
[A]: a

[Q]: Title: Changes. Sentence 1: Jane had been a nurse for 12 years, and liked her job. Sentence 2: But her real passion had always been music. Sentence 3: At 36, she decided to finally pursue her dream. Sentence 4: She was apprehensive, but set up a business teaching music. Choices: a. The change had been scary, but she was so happy she had done it. b. He put some gas into the tank of his car and went to work.
[A]: b

[Q]: Title: Corina's New Brushes. Sentence 1: Corina enjoyed painting. Sentence 2: She needed a new set of paintbrushes. Sentence 3: Corina's birthday was coming up. Sentence 4: For her birthday, her parents bought her a new set of brushes. Choices: a. Mike had a great time on his vacation. b. Corina was excited to use her new brushes.
[A]:
a