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: Tony loved all animals, and always wanted to bring home wild ones. Sentence 2: One day he found an injured squirrel and brought it home to nurse. Sentence 3: His mother was repulsed, and thought it was little better than a rat. Sentence 4: The squirrel recovered, and Tony looked forward to training him. Sentence 5: But he got home to find his mother had evicted the recovered animal. Choices: a. Squirrel. b. The Nails.

a