What did the various groups that made up the aztecs empire have in common?

i beleive a. is the only possible answer

where are the statements?

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.