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 used to be afraid of swimming. Sentence 2: Both deep and shallow water make me nervous. Sentence 3: I was invited to go swimming at a friend's house. Sentence 4: I lied to him by saying I was busy. Sentence 5: I felt bad for lying. Choices: a. Lakehouse. b. I went swimming.

b