Consider the following statement.i. The penetration of suspended matter is deep in the slow sand filterii. The penetration of suspended matter is superficial in the rapid sand filteriii. Coagulation is not required in the slow sand filterWhich of the above statement is/are correct?

Consider the following statement.i. The penetration of suspended matte

1.	Consider the following statement.i. The penetration of suspended matter is deep in the slow sand filterii. The penetration of suspended matter is superficial in the rapid sand filteriii. Coagulation is not required in the slow sand filterWhich of the above statement is/are correct?
A.	Only iii
B.	i, ii
C.	i, ii, iii
D.	ii, iii
Answer» B. i, ii