Use the figures to answer questions 3 and 4. What can you conclude from the figure A? (A) Hund's rule has been violated. (B) The Pauli exclusion principle has been violated. (C) The Aufbau principle has been violated. (D) This is a valid orbital diagram. What can you conclude from the figure B? (A) Hund's rule has been violated. (B) The Pauli exclusion principle has been violated. (C) The Aufbau principle has been violated. (D) This is a valid orbital diagram.