Which civilizations had the greatest impact on Renaissance architecture?

A.
Indus Valley and Chinese

B.
Greek and Roman

C.
Harappan and Indian

D.
Mesopotamian and Egyptian

The correct answer is B. Greek and Roman civilizations had the greatest impact on Renaissance architecture. Renaissance architecture was heavily influenced by the classical orders, which were developed by the ancient Greeks and Romans. Renaissance architects looked to ancient designs and techniques for inspiration and guidance, and many of the key elements of Renaissance architecture are direct borrowings from classical designs.