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: On Christmas Eve Lilly could not find the family cat. Sentence 2: She looked everywhere. Sentence 3: She was afraid the cat might have run out the door earlier that day. Sentence 4: In tears she cat down in front of the Christmas tree. Sentence 5: She smiled when she saw two cat eyes peering at her from the branches! Choices: a. The Missing Cat. b. Lost Dry Cleaning.

a