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: Kate's class had a caterpillar in a habitat. Sentence 2: But the janitor had thrown away it's food. Sentence 3: The kids went outside and looked around for others to feed it. Sentence 4: There were no leaves just like the ones they had. Sentence 5: Thankfully the caterpillar still ate the ones they found. Choices: a. Gathering. b. George falls off his bike.

a