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 bought a basketball goal. Sentence 2: It was for my son's birthday. Sentence 3: He played with it for about an hour. Sentence 4: He got frustrated and gave up easily. Sentence 5: I tried to practice with him every day. Choices: a. Basketball. b. Case Closed.

a