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: I came very close to saying goodbye. Sentence 2: I knew it would kill me to lose him. Sentence 3: I still couldn't resolve my fears about his threats. Sentence 4: I cried for hours. Sentence 5: He just got angrier because I was sad. Choices: a. Man's Best Friend. b. Saying Goodbye.

b