Which statements describe aspects of the Aztec's civilization? Choose all answers that are correct.

A predicted eclipses and developed a 365-day calendar

B communicated using runners from the capital city of Cuzco

C capital city with a population larger than any European city of the time

D practiced human sacrifice to keep Huitzilopochtli strong

So sorry i am answering late but

the answers are

capital city with a population larger than any European city of the time

                                             and                                            

practiced human sacrifice to keep Huitzilopochtli strong

Explanation: I took the test

they thought they were   chrstian even though they were roman opening a r religous war and giving people hope