Answer: Option C.
It is a sustainable plan to use a Renewable source.
Explanation:
It is positive because the local lumber business man plant trees so as to ensure that there is not extinction of the trees and the trees are Renewable for future purposes. At the same time, they will make profit and ensure Continuity of profit in the future.
Compare to clear cutting, the profit is made at instant but the environment is prone environmental hazards like high infrared Ray's since the trees acts as shade,soil is exposed to erosion and defforestation or extinction of species is the outcome.
Planting new samplings will contribute to better environment.