An orifice meter with Cd = 0.61 is substituted by venturi meter with Cd = 0.98 in a pipeline carrying crude oil, having the same throat diameter as that of the orifice. For the same flow rate, the ratio of the pressure drops for the venturi meter and the orifice meter is

• A. \(\frac{{0.61}}{{0.98}}\)
• B. \({\left( {\frac{{0.61}}{{0.98}}}\right)^2}\)
• C. \(\frac{{0.98}}{{0.61}}\)
• D. \({\left( {\frac{{0.98}}{{0.61}}}\right)^2}\)