Determine the pan evaporation from the following data using the Christiansen method.Extra-terrestrial radiation in cm = 47.3cmCoefficient of temperature(Ct) = 1.403Coefficient for wind velocity (Cw)= 1.2Coefficient for relative humidity (Ch) = 1Coefficient for percent of possible sunshine(Cs) = 1.073Coefficient of elevation(Ce) = 1.014

• A. 40 cm
• B. 30.44 cm
• C. 39.8 cm
• D. 37.98 cm
• E. = 1.014a) 40 cmb) 30.44 cmc) 39.8 cmd) 37.98 cm