Express the point given in Cartesian coordinates in spherical coordinates $(\rho, \theta, \phi)$. Note: you really only have to do the work for one, if you use a little geometry and your knowledge of the trig functions.

A) $({\frac{7}{4}} \sqrt{3}, {\frac{7}{4}} , {\frac{7}{2}} \sqrt{3} )$ =

B)$(-{\frac{7}{4}} \sqrt{3}, {\frac{7}{4}} , {\frac{7}{2}} \sqrt{3} )$ =

C)$({\frac{7}{4}} \sqrt{3}, -{\frac{7}{4}} , -{\frac{7}{2}} \sqrt{3} )$ =

D)$(-{\frac{7}{4}} \sqrt{3}, -{\frac{7}{4}} , -{\frac{7}{2}} \sqrt{3} )$ =