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: Chris lost his dog two months ago to cancer. Sentence 2: He explained to his wife how much he misses his old dog. Sentence 3: She told him that this would be his last dog. Sentence 4: After hearing that Chris went to the local dog shelter. Sentence 5: He found a mix breed lab that he fell in love with and brought home. Choices: a. Tennis Team. b. One Last Dog.

b