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: It had been 3 hours since the power went out. Sentence 2: The blackout seemed like it would never end. Sentence 3: Kate decided to go to her car to power up her phone. Sentence 4: Just then the lights on the street came back on. Sentence 5: The whole block began to cheer. Choices: a. Power Returns. b. Jack's Cats.

a