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'.
Q: Sentence 1: Some kids set off fireworks on a mesa. Sentence 2: The grass on the mesa burned. Sentence 3: The fire came close to some houses. Sentence 4: Firefighters put out the fire. Sentence 5: Nobody was hurt. Choices: a. The Book. b. Fourth of July.
A:
b