If the period of revolution of an artificial satellite just above t...

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If the period of revolution of an artificial satellite just above the earth's surface is \( T \) and the density of earth is \( \rho \), then
\( \mathrm{P} \) \( \rho T^{2} \)
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(A) Is a universal constant whose value is \( \frac{3 \pi}{G} \)
(B) Is a universal constant whose value is \( \frac{3 \pi}{2 G} \)
(C) Is proportional to radius of earth \( R \)
(D) Is proportional to square of the radius of earth \( R^{2} \)
Here \( G= \) universal gravitational constant
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