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'.
Q: Sentence 1: Otis was walking to his car after work. Sentence 2: He noticed his tire was flat. Sentence 3: Otis opened the trunk of his car. Sentence 4: He pulled out his spare tire. Sentence 5: Otis changed his tire. Choices: a. Hungry. b. Changing a Tire.
A:
b