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: Bill went to the cd store. Sentence 2: He loved going there. Sentence 3: Finally when he went everything was on sale. Sentence 4: He couldn't believe it. Sentence 5: He scooped up everything. Choices: a. Cd sale. b. Adoption process.

a