A mine ventilation system consists of two splits A and B with resistances of 0.8 Ns²m^-8 and 3.2 Ns²m^-8, respectively as shown in figure. Trunk airways have resistance of 0.2 Ns²m^-8. The main mine fan is generating pressure of 500 Pa.

The flows in the two splits are equalized by placing a booster fan in split B. Assume that the fan pressure does not change after installation of the booster fan. The size of the booster fan in Pa is

A. 749.05

B. 850.08

C. 950.02

D. 1000.5

Answer: Option A