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: Chris Brown Arrested Again. Sentence 1: Singer Chris Brown had a guest in his home, she was a super-model. Sentence 2: But she wouldn't have sex with Chris. Sentence 3: He told her to leave when ready and then he went to bed. Sentence 4: Three in the morning the model goes outside and then calls the police. Choices: a. She said Chris threatened her with a gun and he was arrested. b. Luckily at the last minute she found one for sale and she got in.
A:
b