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: Our cat, Smudge, had a swollen face. Sentence 2: We took Smudge to the vet to find out what was wrong. Sentence 3: The vet looked in Smudge's mouth. Sentence 4: He found that he had a broken tooth. Sentence 5: Smudge had to have an operation to remove the broken tooth. Choices: a. Metal in a Microwave. b. Smudge goes to the vet.

b