Which is an example of how the physical environment helped the Aztecs establish an empire?

A. The capital city of Tenochtitlan could be easily defended from attack.

Explanation:

The capital city of Tenochtitlan was located on a swampy island and as such the surrounding water was a natural defense system against would-be invaders.

The Aztecs built bridges from their city to the mainland which could be removed if they were being attacked.

this question makes no sense dude