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: Mark is an athlete that competes in Track and Field. Sentence 2: He has a practice session where he practices his jumps. Sentence 3: He was running late and decided to practice without warming up. Sentence 4: When he jumped the first hurdle, he got a cramp. Sentence 5: He decided to never train without warming up. Choices: a. Elliptical. b. Mistake.

b