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: Haley heard a dog barking outside her window. Sentence 2: She did not own a dog, and went outside to investigate the noise. Sentence 3: The dog ran into her house and laid down on the sofa. Sentence 4: Haley asked around to see if anyone owned the dog. Sentence 5: Haley decided to adopt the dog when no one claimed him. Choices: a. New Friend. b. Trip To The Dentist.

a