A baffle wall is a sort of weir constructed at the end of the cistern to:i. To prevent any excess amount of discharge likely to pass through the moduleii. The baffle plates are inserted in the eddy chamber sloping from the outer wall towards the inner walliii. Head up the water to its upstream to such a height that hydraulic jump is formedWhich of the following statement is correct?

• A. i only
• B. i and iii
• C. i and ii
• D. i, ii and iii