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: Denis was helping calm his daughter's nerve. Sentence 2: She doesn't like going to the doctor. Sentence 3: Denis promised his daughter that she was the bravest kid. Sentence 4: When she came out, she had a triumphant grin. Sentence 5: She didn't cry once. Choices: a. Doctor. b. Runaway.
A:
a