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 liked fast cars. Sentence 2: He enjoyed the feeling of high speed on back roads. Sentence 3: He traded in his Civic for a new Porsche. Sentence 4: He floored the accelerator pedal going around a tight turn on a hill. Sentence 5: The police discovered the demolished car at the bottom of the hill. Choices: a. Speed. b. Salesman.

a