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: Dina daughter Avery just turned two. Sentence 2: Dina felt like she should put Avery in Daycare because of her job. Sentence 3: She didn't trust Daycares and felt like she should be with Avery. Sentence 4: One day after she picked up her daughter she heard something peculiar. Sentence 5: Avery was singing her ABCs and Dina was pleased and felt at ease. Choices: a. The Lucky Day. b. ABCs.

b