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: Laura wanted to buy items on a video game. Sentence 2: She told me that she was going to buy some, but I didn't want her to. Sentence 3: We debated about that topic for a solid 10 minutes. Sentence 4: I ended up giving in and letting her win. Sentence 5: Laura bought her item on her video game and was happy! Choices: a. Buying. b. Zipper.

a