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: The teacher saw the student slumped in the hallway. Sentence 2: He thought the student was choking and couldn't breathe. Sentence 3: The teacher performed the Heimlich Maneuver. Sentence 4: It wasn't until the third try that the student was able to talk. Sentence 5: He explained that wasn't choking but had cracked his ribs in PE. Choices: a. Pictures. b. Heimlich Maneuver.

b