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: Mazey lurched forward as the ostrich tried to insert its beak inside. Sentence 2: It mouthed at her from the window of the Jeep. Sentence 3: Mazey was afraid and told the guide to drive on ahead. Sentence 4: The guide told her they were going to leave the car instead. Sentence 5: Mazey panicked when exiting the car and ran as the ostriches chased. Choices: a. Ostrich. b. Don't Forget to Ground the Tent.
a