Im bored somebody comment down below please

Which was not a reason for the fall of the han dynasty? neglected farmland civil war decline in trade peasant rebellions foreign invasions

Those who resisted the mongol invaders were attacked and their towns burned; those who cooperated with them also were attacked and had their towns burned. were treated fairly. were taken into the tribes and treated as mongols. were sent away to find new homes.

Which statement is true of both presidential and parliamentary systems of government?