Calculate power required to maintain flow if dynamic viscosity and density

Question

 A 0.20 m diameter pipe 20 km long transports oil at a flow rate of 0.01m³/s. Calculate power required to maintain flow if dynamic viscosity and density of oil is 0.08 Pascal and 900 kg/m³ respectively.

                                          

(A) 4.064 kW              (B) 3.074 kW

(C) 5.064 kW              (D) 4.074 kW