Which of the Following Is a Valid Set of Four

Multiple Choice

Which of the following is a valid set of four quantum numbers? (n, l, m_l, m_s)

A) 1, 0, 1, +1/2
B) 1, 1, 0, - 1/2
C) 2, 2, 1, - 1/2
D) 2, 1, +2, +1/2
E) 2, 1, 0, +1/2