The correct answers are B) internal problems. C) a poor economy. E) unhappy citizens.
The issues that can lead to an empire's collapse are internal problems, a poor economy, and unhappy citizens.
These elements can be found in most fallen Empires in ancient history. We can use the example of the Roman Empire. It grew and expanded that the vast territory was impossible to tule under effective leadership. Internal problems began, the economy started to fail, there was no more silver to make coins, Emperors raised more taxes, citizens were unhappy, society lived in discontent, and foreign invaders started to capture many territories.
