Many considered Louis XVI to be ineffectual mainly because of the fact that the revolution had already taken place, and that he was unable to enact any meaningful policies.
The president will nominate someone to fill the position .
I would go for (4).
The trials aimed at eliminating the excuse of.."doing my duty as ordered by my superiors" in matters of war crimes in particular against humanity (genocide, extermination, violence and retaliation against civilians, etc.)
I think it's D. after conquering southern China, he ruled over the largest land empire in history.