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The principal disadvantages of the selection system are:

[A].	The quality of the timber may be inferior to that grown in even-aged crops.	[B].	The whole are being always under regeneration.
[C].	The light conditions provided by the irregular crop of mixed ages may result in the young growth having a poor chance to develop, except with shadebearing species.	[D].	The fellings are scattered over comparatively large areas.
[E].	All of the above

Answer: Option E