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: My husband came home walking with a limp. Sentence 2: I asked him what was wrong. Sentence 3: He said he'd injured his back at work. Sentence 4: Sitting in the same position for hours had caused a lot of pain. Sentence 5: We decided to schedule an appointment to get it checked out. Choices: a. Back. b. Juggling.

a