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: Chris was very successful. Sentence 2: He was a popular rapper. Sentence 3: He went to the studio to record his new album. Sentence 4: He had writer's block. Sentence 5: He couldn't think of anything good. Choices: a. The Rapper. b. First base.

a