Kepler's third law states that square of period of revolution (T)of a period around the sun is proportional to third power of average distance r between sun and planet i.e`.T^2=Kr^3`, hence K is constant .If the masses of sun and planet are M and m respectively then as per Newton 's law of gravitation force of attraction between them is `F=(GMm)/(r^2)` here G is gravitational between G and K is described as :

Options

A. `GMK=4pi^2`
B. `K=G`
C. `K=1/G`
D. `GK=4pi^2`