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: The cop realized he was powerless. Sentence 2: This feeling made him feel bad. Sentence 3: He told his partner about his feeling. Sentence 4: His partner suggested vigilante justice. Sentence 5: This made the man feel more powerful. Choices: a. Powerless. b. fame.

a