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: Jack was playing with his new sling shot outside of his home. Sentence 2: Jack saw what he thought was a cluster of leaves on a tree. Sentence 3: Jack fired a rock from his slingshot at the cluster of leaves. Sentence 4: Jack realized it was a baby bird's nest with one injured baby bird. Sentence 5: Jack helped the bird by taking care of it and eventually set it free. Choices: a. The injured bird.. b. The Robbery.

a