Cultivation of trees for the purpose of science, education, recreation and landscaping is known as

Correct option is B

Arboriculture deals with the cultivation and management of trees and shrubs.
It is mainly practiced for educational, scientific, recreational and landscaping purposes.
It focuses on individual trees rather than forest stands.
Silviculture is concerned with forest crops as a whole.
Olericulture deals with vegetables and floriculture with flowers.
Hence arboriculture is the correct answer.