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: Mitch was a lousy friend. Sentence 2: He was never there in times of need. Sentence 3: He took money and never paid back. Sentence 4: When he fell into bad luck, his friends left him alone. Sentence 5: And for the first time he understood what it was like. Choices: a. Wedding Date. b. Lousy friend.

b