Given the task definition and input, reply with output. 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'.

Sentence 1: I got Charlie Horse when I was four years old. Sentence 2: He's a brown stuffed horse, and at 35 I still sleep with him at night. Sentence 3: He was my best friend, and always laid at the head of my bed. Sentence 4: I laid him next to me, smelling his soft fur every night. Sentence 5: I liked to listen to my radio as I fell asleep cuddling him. Choices: a. Charlie Horse. b. Corn.

a