The Pauli Exclusion Principle Tells Us That No Two Electrons

The Pauli exclusion principle tells us that no two electrons in an atom can have the same quantum number(s)

A) n, ℓ, m_ℓ, and m_s.
B) n, ℓ and m_ℓ.
C) m_ℓ and m_s.
D) n and ℓ.
E) n.