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: Sam was on a road trip. Sentence 2: After a while he noticed he was on a bumpy highway. Sentence 3: It didn't fix itself for miles. Sentence 4: Eventually Sam realized it was his car, not the road. Sentence 5: His suspension needed to be fixed. Choices: a. My new bike. b. Bumpy Ride.

b