The answer is
e o i and a
not really sure forgive me if im wrong
The answer is diagram A.
Hope this helped. Good luck!
I think I have done a question like this before and i'm pretty sure your answer would be the 2nd one 1s22s22p4. I'm not 100% sure but try it at least.
The awnser would be (C.) As it is the only correct one.
