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: Anna had a chest x-ray. Sentence 2: They were worried that she had a heart problem. Sentence 3: She was very nervous! Sentence 4: But the results came back normal. Sentence 5: Anna was so relieved. Choices: a. Test. b. Bird Watching.

a