When the irrigation canal and the drain are at the same level, then the cross drainage work is achieved by providing a

When the irrigation canal and the drain are at the same level, then th

1.	When the irrigation canal and the drain are at the same level, then the cross drainage work is achieved by providing a
A.	aqueduct
B.	super-passage
C.	level crossing
D.	canal syphon
Answer» D. canal syphon