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: Ryan went to the mountains to climb. Sentence 2: He couldn't find his harness at his back pack. Sentence 3: He drove home to look for his harness. Sentence 4: His harness is not at his house. Sentence 5: He found his harness outside his front door on his way out. Choices: a. Mountain Climbing. b. A friend request.

a