A. Predominant trees comprising all the largest trees which determine the general top level of the canopy
B. Codominant trees which fall short of this, averaging about 5/6th of the height of predominant
C. Trees with forked leader and similar defects
D. All of the above
The correct answer to the question: "Dominant tree: Including all trees which form the upper most leaf canopy and have their leading shoots free. These are usually sub-divided into:" is "All of the above".