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 neighbor Lola in Brighton owns a nice house. Sentence 2: She was recently laid off. Sentence 3: She decided to rent out a room on Airbnb. Sentence 4: Business was so good she built a second bedroom. Sentence 5: She now uses Airbnb as her sole source of income. Choices: a. Sad Call. b. Airbnb.

b