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 was in the car with a friend. Sentence 2: He was driving. Sentence 3: It was a four way stop. Sentence 4: He was afraid the other person would not stop. Sentence 5: There was no need to worry. Choices: a. Police. b. Stop Sign.

b