You will be given a definition of a task first, then some input of the task.
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'.

Sentence 1: Kyla wanted to get better at doing her makeup. Sentence 2: She went on Youtube and watched some tutorials. Sentence 3: She quickly realized there was much she didn't know about makeup. Sentence 4: She watched video after video, slowly becoming better at the art. Sentence 5: Today, she is a famous makeup artist in Hollywood. Choices: a. Makeup. b. How to catch a butterfly.
Output:
a