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 got onto the elevator to go to the third floor after my lunch break. Sentence 2: I pushed the button, but the door wouldn't close. Sentence 3: I quickly realized that the elevator was not working properly. Sentence 4: I had to walk up three flights of stairs to go back to work. Sentence 5: By the time I reached the top, I felt like I could die! Choices: a. Play Date. b. Broken Elevator.

b