For calculating the evaporation rate over a reservoir surface E = 0.771 (1.465 - 0.00732 B ) (0.44 - 0.007375 V ) ( p e - p a ), the equation is given by

For calculating the evaporation rate over a reservoir surface E = 0.77

1.	For calculating the evaporation rate over a reservoir surface E = 0.771 (1.465 - 0.00732 B ) (0.44 - 0.007375 V ) ( p e - p a ), the equation is given by
A.	Roohwer's, formula in M.K.S.
B.	Roohwer's formula in F.P.S.
C.	Dalton's formula in F.P.S.
D.	Dalton's formula in M.K.S.
Answer» B. Roohwer's formula in F.P.S.