If the energy, `E = G^p h^q c^r,` where G is the universal gravitational constant, h is the Planck's constant and c is the velocity of light, then the values of p are q and r are, respectively

Options

A. `-1//2, 1//2 and 5//2`
B. `1//2, -1//2 and-5//2`
C. `-1//2, 1//2 and3//2`
D. `1//2, -1//2 and -3//2`