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: Yesterday I went on a hike. Sentence 2: We walked six miles on the trail. Sentence 3: I was ready to pass out, I was so tired. Sentence 4: Towards the end it started to rain. Sentence 5: Thankfully then, the hike was cut short. Choices: a. Bad hike. b. Frigid north end.

a