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: David was digging a giant hole in the yard. Sentence 2: His friends didn't understand why he was digging. Sentence 3: They went to his yard to investigate. Sentence 4: David was planting an apple tree! Sentence 5: David gave fresh apples to his friends when he was done planting. Choices: a. Planting a Tree. b. First Time Skating.

a