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 had a young baby boy. Sentence 2: His son was having trouble sleeping. Sentence 3: Tom began reading nighttime stories to his son. Sentence 4: His son loved the fairy tales. Sentence 5: His son slept great after hearing the nice fairy tales. Choices: a. A Treat. b. Fairy Tale.

b