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: Roberta drove a thousand miles a week for work. Sentence 2: She had bought a new car a year ago. Sentence 3: The car had many miles on it because of her work demands. Sentence 4: She wanted to get a new car but her trade in value was low. Sentence 5: Roberta had to keep the car she already had. Choices: a. a new car. b. Melody Memory.

a