Which of the Following Sets of Quantum Numbers Is Shared

Multiple Choice

Which of the following sets of quantum numbers is shared by electrons in the same orbital?

A) {2, 1, 0, −1/2} and {2, 1, 1, +1/2}
B) {2, 1, 0, +1/2} and {2, 1, 0, −1/2}
C) {3, 1, 1 , −1/2} and {3, 1, −1, +1/2}
D) {3, 2, 0, +1/2} and {3, 2, 1, −1/2}
E) {1, 1, −1, −1/2} and {1, 1, 1, + 1/2}