Answer:
The correct answer would be - at least 4 to 5 time of the diameter of the crown of the tree.
Step-by-step explanation:
The crown of the tree is actually the canopy of a tree that is make up of the extended branches of the plant from the beginning of the branches of the tree.
The roots on the trees and shrubs that are planted in a landscape is grow 4 to 5 times of the crown or the canopy of the plant in a particular plant that as branches spread within 2 to 3 year of life span.
Thus, the correct answer is -at least 4 to 5 time of the diameter of the crown of the tree.