How does the order of the element in a formula affect the name

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

i think that the answer is c

plasma - state of matter made up of electrically charged particles