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: Jeffrey was excited to be taking his driver's test. Sentence 2: He knew he would pass today. Sentence 3: If he did not pass this time he would have to start over. Sentence 4: He drove the course carefully. Sentence 5: Thankfully, he passed with flying colors! Choices: a. Driving test. b. Why can't I sleep?.

a