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 was leaving a concert. Sentence 2: He noticed the parking lot was really full. Sentence 3: Tom forgot exactly where he parked. Sentence 4: He looked around for a long time without finding his car. Sentence 5: Tom decided to wait until it was more cleared out to look again. Choices: a. Depressed girl. b. Lost Car.

b