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: I tried to ignore the feeling. Sentence 2: My chest was tight. Sentence 3: I went to the doctor when it wouldn't go away. Sentence 4: I was terrified my heart was diseased. Sentence 5: He told me instead that I had asthma. Choices: a. Heart. b. Work.

a