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: Andy was cleaning out his old, dusty garage. Sentence 2: But he didn't think about the terrible air quality. Sentence 3: Without any breathing mask, he spent all day moving boxes. Sentence 4: When the day was over, his lungs felt terrible. Sentence 5: So he wore a respirator the next time he went into his garage. Choices: a. Old Garage. b. Running Pain.

a