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: Tim was going to drive a friend home. Sentence 2: The friend had too much to drink. Sentence 3: He couldn't get the friend's keys to work. Sentence 4: The friend was too drunk to help. Sentence 5: He had taken the wrong keys by accident. Choices: a. Swimming. b. Wrong Key.

b