The SI unit of gravitational constant G is

(A) N m^2 Kg^-2

(B) N Kg^2 m^-2

(C) m^2 Kg^-1 S^-2

(D) N m^-2 Kg^-2

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(A) N m^2 Kg^-2

(B) N Kg^2 m^-2

(C) m^2 Kg^-1 S^-2

(D) N m^-2 Kg^-2

??Note- Share your ?answer in details so that it will be helpful for others