If there are two canals taking off from each flank of a river, then there will be
(A) One divides wall and one under-sluice
(B) One divides wall and two under-sluices
(C) Two divide walls and one under-sluice
(D) Two divide walls and two under-sluices
(A) One divides wall and one under-sluice
(B) One divides wall and two under-sluices
(C) Two divide walls and one under-sluice
(D) Two divide walls and two under-sluices