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 bear was wounded. Sentence 2: He had trouble finding enough food. Sentence 3: The bear became aggressive. Sentence 4: He charged some humans. Sentence 5: The bear was killed by park service. Choices: a. The Pool. b. Wounded.

b