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: One day, Ben's mother told him they were getting a puppy. Sentence 2: Excitedly, they made the drive to a friend's house. Sentence 3: Their friend's dog had given birth to eight puppies. Sentence 4: Ben was allowed to pick out which puppy he wanted. Sentence 5: He spotted a red one he loved and in eight weeks, he took it home. Choices: a. The Right One. b. THAT DAY.
Output:
a