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: Yesterday we were in our car. Sentence 2: Someone wanted to talk to us. Sentence 3: My Mom rolled down the window so she could talk. Sentence 4: When she was done, the window wouldn't roll up. Sentence 5: Now our car window is broken! Choices: a. Mugging. b. Our Car Window.

b