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: My roommate went to see his family. Sentence 2: He was very messy. Sentence 3: I decided to mop under his entire area. Sentence 4: He came back. Sentence 5: And it became messy quickly. Choices: a. Mushy Apples. b. Messy Roommate.

b