Electron Configuration principles

[DDS]

Which principle or rule must be used to determine the correct electronic configuration for carbon in its ground state?
a.Aufbau Principle
b. Hund's Rule
c. Pauli Exclusion Principle
d. (A) and (B) only
e. All three

I know for a fact that Aufbau's and Hunds rule deal with ground state configuration i just don't know if you consider Paulis rule, which says that no two electrons can have the same 4 quantum numbers, when you are conforming an electron to its ground state?

Can any help me, my answer as of know is D but I am second guessing myself with E

 

[Oscar Ramirez ch.]

Hello

As far as I remember, you have to apply the three principles. Pauli, AufBau and Hund.