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: Luke worked 70 hours a week and hardly saw his kids. Sentence 2: When he was at home, he slept and watched video games. Sentence 3: One morning, his wife had an appointment and he spent time with kids. Sentence 4: Luke was surprised to find himself having fun. Sentence 5: He decided to work less, and spend more time with his kids. Choices: a. Being a Dad. b. Double Rainbow.

a