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: Sue, Bob and John were close friends. Sentence 2: All three of them were fast runners. Sentence 3: Bob was the slowest and always finishing last. Sentence 4: They went to the same high School. Sentence 5: During their track running in College, bob became the fastest. Choices: a. Sharing and Caring. b. Track Runner.

b