Most economical section of a circular channel for maximum discharge

[A].	depth of water = 0.95 diameter of circular section
[B].	hydraulic mean depth = 0.286 diameter of circular section
[C].	wetted perimeter = 2.6 diameter of circular section
[D].	wetted perimeter = 2.83 depth of water
[E].	all the above.

Answer: Option E

Explanation:

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