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: Gibson wanted a new cellphone. Sentence 2: He had broken his previous one. Sentence 3: His dad said he would not buy him a new one. Sentence 4: Gibson begged for many days. Sentence 5: After many months, his dad finally bought him a new phone. Choices: a. Cougar. b. Phone.

b