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 seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Title: Cat. Sentence 1: My cat and I moved to a new apartment. Sentence 2: I loved my new apartment, but my cat didn't. Sentence 3: He would often hide in a closet or under the bed to show his anger. Sentence 4: One day, I called for him but couldn't find him anywhere. Choices: a. I think he ran away, because I never saw him again. b. Claire brought the trash out.
a