One of the Roman Empire's most important achievements was: A.
creating the religious idea of polytheism.

B.
making sure people were treated equally.

C.
building many roads to connect their cities.

D.
ending the system of slavery.

C is the correct answer

Explanation:

They developed many new techniques for buildings and construction of all types including the invention of concrete, Roman roads, the invention of Roman arches, and incredibly well built aqueducts that ran for miles before they reached the end and delivered fresh water. With roads they expanded their empire by warfare and trade.

montesquieu took the view that the roman republic had powers separated so that no one could usurp complete power. in the british constitutional system, montesquieu discerned a separation of powers among the monarch, parliament, and the courts of law.

wwii

explanation: