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: Karen lives in a small apartment with her cat. Sentence 2: She has owned this cat for about eight years. Sentence 3: She loves her cat a lot and takes good care of her. Sentence 4: Unfortunately Karen has to put the cat to sleep due to illness. Sentence 5: She is having a hard time coping with this fact. Choices: a. Daddy's Little Girl. b. Karen and Her Cat.

b