If H = Planck's Constant, the Frequency of Light Emitted

Multiple Choice

If h = Planck's constant, the frequency of light emitted when an atom makes a transition is equal to

A) the energy of revolution of the electron in its lowest energy orbit divided by h.
B) the energy gained by the electron divided by h.
C) the energy lost by the electron divided by h.
D) the energy of revolution of the electron in its highest energy orbit divided by h.