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: Dan's brother was getting a divorce. Sentence 2: His brother couldn't keep the dog. Sentence 3: Dan wasn't happy. Sentence 4: Dan's parents decided to take the dog. Sentence 5: Dan was very happy. Choices: a. The New Pet.. b. Traffic.

a