mongols were engineers they developed taxes also as they expanded there empire
I believe it is C.
ROMANS- Education in ancient Rome progressed from an informal, familial system of education in the early Republic to a tuition-based system during the late Republic and the Empire. The Roman education system was based on the Greek system – and many of the private tutors in the Roman system were Greek slaves or freedmen.
GREEKS-The government systems of ancient Greece were varied as the Greeks searched for the answers to such fundamental questions as who should rule and how? Should sovereignty (kyrion) lie in the rule of law (nomoi), the constitution (politea), officials, or the citizens? Not settling on a definitive answer to these questions, government in the ancient Greek world, therefore, took extraordinarily diverse forms and, across different city-states and over many centuries, political power could rest in the hands of a single individual, an elite or in every male citizen: democracy - widely regarded as the Greeks' greatest contribution to civilization.
Germans realized they had little chance of winning the war. They were suffering from severe shortages of food and other needed supplies. :)
Answer:
B. A a system of government by the whole population or all the eligible members of a state, typically through elected representatives, government where the people have the power.
Answer:

Explanation:
Albert Einstein lived from 1879 to 1955.
He passed away at the age of 76.