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: Tom was out driving with his girlfriend. Sentence 2: He let her pick the music. Sentence 3: She kept changing the station. Sentence 4: Eventually there was a song Tom liked. Sentence 5: They listened to it together. Choices: a. Driving Music. b. Sold Out.

a