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: Hank was working in his yard one morning. Sentence 2: While mowing the lawn, he discovered a wasps nest. Sentence 3: Surprised, he rushed indoors. Sentence 4: He researched how to safely remove the nest. Sentence 5: Later that day, he took the proper measures to get rid of it. Choices: a. Wasp. b. Water.

a