When the levels are such that the F.S.L. of the canal is much above the bed level of the drainage trough, so that the canal runs under syphonic action under the trough, the structure provided is known as

When the levels are such that the F.S.L. of the canal is much above th

1.	When the levels are such that the F.S.L. of the canal is much above the bed level of the drainage trough, so that the canal runs under syphonic action under the trough, the structure provided is known as
A.	syphon aqueduct
B.	level crossing
C.	canal syphon
D.	super syphon
Answer» D.