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: Tim worked as a valet. Sentence 2: Tim was a great valet. Sentence 3: Tim drove expensive cars due to his work. Sentence 4: Tim received a huge tip. Sentence 5: Tim was very happy to receive the tip. Choices: a. Valet. b. "Bite".

a