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: Tom had an idea for a new item. Sentence 2: Most people thought there wasn't an audience for it. Sentence 3: Tom realized he could find niche markets online. Sentence 4: He went ahead and created and marketed his item. Sentence 5: Tom made a good amount of money on it. Choices: a. Niche Market. b. Nail Polish Fiasco.

a