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: As the doctor gave me the first shot, he told me I would be nervous. Sentence 2: I thought he meant I would get scared. Sentence 3: When I got home and sat on the couch, I found out what he meant. Sentence 4: I couldn't stop my legs and arms from trembling. Sentence 5: I tried to be still, but even in my sleep, I trembled all day. Choices: a. Nervous. b. Pop Quizzes.

a