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 was a nascar driver. Sentence 2: It was his first race. Sentence 3: He got into a bad accident. Sentence 4: Tom was badly crippled. Sentence 5: It ended his racing career. Choices: a. Training the dog. b. Bad Crash.

b