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: Liz decided to get her parents a new puppy. Sentence 2: She had a friend who was selling his puppy. Sentence 3: Liz went and met the puppy and fell in love. Sentence 4: Her name was Mya. Sentence 5: Liz surprised her parents with the new puppy. Choices: a. Hermit Crabs. b. Puppy.

b