Select all the correct answers. What two conclusions might a ruler of an empire draw from the decline of the Han, Roman, and Gupta empires?
The government should allow officials to use tax money as they see fit.
A strong, loyal army is necessary to protect the empire from invaders.
Government officials should be chosen only by military officials.
The government should try to prevent internal rebellions.
The people should be isolated from other cultures to keep the empire strong.