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: My cat had been suffering from cancer for awhile. Sentence 2: She couldn't retain any nutrients either. Sentence 3: She weighed five pounds yesterday. Sentence 4: So we had to put her down. Sentence 5: It was incredibly sad. Choices: a. Lost cat. b. Magician.

a