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: Our family gather around the Christmas tree. Sentence 2: Each member of the family place one declaration piece on the tree. Sentence 3: We place our gifts under the tree on Christmas Eve. Sentence 4: Everyone in the family sing Christmas Carols. Sentence 5: Christmas Day we exchanged gifts and enjoyed our Christmas dinner. Choices: a. New Rug. b. Christmas Time.

b