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: Mike loved his old sheepdog Barney. Sentence 2: Mike was a baker and made Barney a chocolate cake once a week. Sentence 3: Though this made Barney really happy, it also made him very fat. Sentence 4: Barney's vet had told Mike that he needed to help Barney lose weight. Sentence 5: But Mike didn't listen and Barney passed away from a heart attack. Choices: a. Manuscript. b. Barney.

b