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: I wanted a simple bike for commuting. Sentence 2: So I bought a cheap one one sale. Sentence 3: But it didn't fit me properly. Sentence 4: And it was uncomfortable to ride. Sentence 5: I ended up returning it and buying something more expensive. Choices: a. Halloween Party. b. Cheap Bike.

b