Given to design the irrigation channel to carry 80 cumecs of discharge. The channel slope is 1 in 3000. The critical velocity ratio is 1.3. Take rugosity coefficient as 0.021.

• A. Depth = 3 m, Base width = 15 m
• B. Depth = 3.5 m, Base width = 15.5 m
• C. Depth = 3.3 m, Base width = 15.2 m
• D. Depth = 3.2 m, Base width = 15.1 m