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: Lisa wanted to take a yoga class. Sentence 2: She was unsure what items she would need for the class. Sentence 3: She called the instructor and asked what items she would need. Sentence 4: The instructor stated that she would need a yoga mat. Sentence 5: Lisa bought a yoga mat and signed up for the class. Choices: a. Yoga Class. b. KPOP.

a