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's car broke down. Sentence 2: The engine wouldn't turn over. Sentence 3: Tom checked under the hood. Sentence 4: He noticed that a battery wire was loose. Sentence 5: He tightened it and it worked again. Choices: a. My Sister and Me. b. Loose Wire.

b