You will be given a definition of a task first, then some input of the task.
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'.

Sentence 1: Barb was very upset when her dog got sick. Sentence 2: They had no choice but to put the dog to sleep. Sentence 3: Barb thought she would never get over it. Sentence 4: One day, her friend surprised her with a new puppy. Sentence 5: Barb fell in love with the pup and felt a lot better. Choices: a. Barb's New Friend. b. Granny goes Wild.
Output:
a