*PLEASE HELP*

Which are characteristics of the Aztec's civilization?

Choose all answers that are correct.

A.
craftsmen created dazzling headdresses, cloaks, and ornaments

B.
established granaries to store grain to use during years of poor harvests

C.
created a vast system of coastal and mountain roads to link its empire

D.
transformed a deserted island into a large city with causeways