Question

4 the civilization was one of the most sophisticated civilizations in the americas.
a mayan
b aztec
c incan
d olmec

Explanation:

The Mayan civilization had advanced achievements in mathematics, astronomy, writing, and architecture. They developed a complex calendar system, built large - scale cities and temples. Aztec, Incan, and Olmec civilizations were also remarkable but the Mayans are well - known for their high level of sophistication.

Answer:

A. Mayan