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: I went hiking last week. Sentence 2: I brought my whistle with me in case of an emergency. Sentence 3: While I was walking on a trail, a bear appeared. Sentence 4: I blew the whistle. Sentence 5: The bear ran away. Choices: a. Hiking. b. Bunnies needed a home..

a