Which of the Following Statements Is True Concerning the Electron

Which of the following statements is true concerning the electron configuration [Ar]4p²?

A) This configuration cannot be the ground-state electron configuration for a Ca atom because it violates the Pauli exclusion principle.
B) This configuration cannot be the ground-state electron configuration for a Ca atom because it violates Hund's rule.
C) This configuration is the ground-state electron configuration for a Ca atom.
D) This configuration cannot be the ground-state electron configuration for a Ca atom because it violates the Heisenberg uncertainty principle.
E) This configuration cannot be the ground-state electron configuration for a Ca atom because it violates the Aufbau principle.