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: Natasha was born on Christmas day. Sentence 2: She didn't like it because all her gifts were mixed together. Sentence 3: To help her, her mother changed her birthday's date. Sentence 4: She celebrated her on June the 25th of each year. Sentence 5: So that way Natasha had two sets of presents and was happier. Choices: a. Christmas or birthday?. b. Honoring the past.

a