The aqueduct or super-passage type of works are generally used when
(A) High flood drainage discharge is small
(B) High flood drainage discharge is large and short lived
(C) High flood drainage discharge is large and continues for a long time
(D) None of the above
(A) High flood drainage discharge is small
(B) High flood drainage discharge is large and short lived
(C) High flood drainage discharge is large and continues for a long time
(D) None of the above