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: Henry fell asleep in his History class. Sentence 2: His teacher got so mad at him. Sentence 3: She sent him to the principal's office. Sentence 4: He didn't get in trouble. Sentence 5: The next day he apologized and she was very happy. Choices: a. Sleep. b. Hall of Mirrors.

a