In Leonardo's Last Supper, the Numerous Preparatory Sketches and Studies

In Leonardo's Last Supper, the numerous preparatory sketches and studies he made for the work indicate how carefully he thought about this work as a complete entity representing the entire story and its theme. Based on this which of the following would describe Leonardo's conceptualization of the figures from his Last Supper?

A) Each figure was individualized.
B) He grouped the figures in threes, and they all expressed the same emotion.
C) He used the emotions of rage and sorrow for each figure appearing at each end of the table.
D) All the figures expressed only rage.