Which type of lining is adopted when the channels have become stable and no danger of scouring is expected?

Flexible membrane lining in the bed and rigid lining on the sides

Which type of lining is adopted when the channels have become stable a

1.	Which type of lining is adopted when the channels have become stable and no danger of scouring is expected?
A.	Brick lining
B.	Single burnt clay tile lining
C.	In-situ cement concrete lining
D.	Flexible membrane lining in the bed and rigid lining on the sides
Answer» E.