Which Statement Is Incorrect

Which statement is incorrect?

A) Clear-cutting can be appropriate when it removes genetically inferior trees.
B) Shelterwood harvesting works by cutting the high-value trees and leaving the others to reseed the plot.
C) Strip harvesting maintains a small level of biodiversity after a cut is made.
D) Shelterwood harvesting may have the highest levels of biodiversity postharvest compared with the other methods of harvest.
E) All of these answers are incorrect.