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: Peter was walking home one night. Sentence 2: He noticed a bright object moving in the sky. Sentence 3: After watching the object for several minutes, Peter heard a noise. Sentence 4: He turned around immediately and saw a man holding a controller. Sentence 5: Peter looked back at the object and saw that it was a drone. Choices: a. Rainy Day. b. The UFO.

b