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: A tree surgeon I worked for had a dilemma. Sentence 2: The tree he wanted to remove was too close to houses, all around. Sentence 3: He tied a rope to the top of the tree. Sentence 4: Then he had one of his workers hold onto the pulley rope. Sentence 5: He then proceeded to cut the tree piece by piece. Choices: a. balloon. b. Tree Removal..

b