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: Olivia went to school always on time. Sentence 2: She was never late even on snow days. Sentence 3: Her parents made sure she always arrived on time. Sentence 4: That all changed suddenly one day. Sentence 5: Her parents had car trouble and couldn't take her to school in time. Choices: a. Fastest Words. b. Like Clockwork.

b