Definition: In this task, you're given five sentences, numbered 1 through 5, and two options a and b for possible titles for the story. Your job is to choose the title that better fits the story. Indicate your choice by 'a' or 'b'.
Input: Sentence 1: Tom didn't like pets. Sentence 2: His girlfriend got a cat. Sentence 3: Tom didn't care for it at first. Sentence 4: After a while the cat's silly ways won him over. Sentence 5: Tom wound up liking it more than his girlfriend. Choices: a. Dental Hygiene. b. Silly Cat.

b