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: One day the Cellar family decided to make plans for a fire escape. Sentence 2: Mrs Cellar went out and bought some mini ladders for upstairs. Sentence 3: Everyone was satisfied with the plan. Sentence 4: Mrs Caller hung it on the fridge. Sentence 5: Everyone felt safer. Choices: a. The Chase. b. Fire Plan.

b