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: Rupert could not sleep because he was afraid. Sentence 2: He thought he saw a ghost sitting in his closet. Sentence 3: Rupert got up to peek inside of his closet. Sentence 4: He found only his shirts hanging in there. Sentence 5: Rupert laughed as he fell asleep. Choices: a. The ghost in the closet. b. Spiders.

a