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: Kate was on the phone with Sue who was out of town. Sentence 2: After 5 minutes Kate heard giggling in the background. Sentence 3: Sue began talking to the girls in the background. Sentence 4: Kate waited patiently until Sue hung up to talk to the girls. Sentence 5: Kate decided she wouldn't talk to Sue anymore that summer. Choices: a. Group of Girls. b. The Hunting Dog.

a