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: Sammy needed to go to the bathroom. Sentence 2: He was a little nervous waiting, so he was humming. Sentence 3: The teacher wanted to know who was humming while he was talking. Sentence 4: Paul pointed at Sammy. Sentence 5: Sammy felt so bad he began to cry. Choices: a. Humming. b. Rachel.

a