Which of the Following Is NOT True for X-Ray Fluorescence $\alpha$

Which of the following is NOT true for X-ray fluorescence?

A) The fluorescent X-ray photon has a lower energy than the original X-ray photon.
B) The incoming X-ray knocks free an electron from the K,L,or M shells.
C) The fluorescent X-ray photon is emitted when an outer shell electron falls into a shell closer to the nucleus.
D) K X-rays original when L or M shell electrons fall into the K shell.
E) K $\alpha$ and K $\beta$ X-rays originate when L shell electrons transition to the K shell.