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A.Square courtyards

B.massive pyramids of the sun
C.use of horse-drawn chariots
D.complex communication system.

A.Square courtyards B.massive pyramids of the sun C.use of horse-drawn chariots D-example-1
User Wakumaku
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Answer:

D. complex communication system.

Step-by-step explanation:

All civilizations used it's own way of communication.Example, ancient egyptians used haemogryphs as meas of communicating.

User Brian Kendig
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