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: Rick decided to create a new garden in the yard. Sentence 2: He got to work pulling up ivy to clear space. Sentence 3: In the ivy he kept finding tennis balls the dog had lost. Sentence 4: He started keeping a pile of all the balls he found. Sentence 5: Rick ended up with more tennis balls than flowers. Choices: a. High Heels. b. Yard Work.

b