A railway engine of mass m moves along a horizontal track with uniform speed \(v\). The total resistive force acting on the engine is \(F\).

Which of the following is the power of the engine?

A.     \(\frac{F}{{mv}}\)

B.     \(Fv\)

C.     \(\frac{{mv}}{F}\)

D.     \(\frac{v}{F}\)

B