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: The metal rusted. Sentence 2: Nobody did anything about it. Sentence 3: One day the part broke. Sentence 4: It hurt somebody. Sentence 5: The insurance company blamed it on negligence. Choices: a. rust. b. Karina Ate An Apple.

a