All of the following characterized the Aztec capital of Tenochtitlàn

All of the following characterized the Aztec capital of Tenochtitlàn EXCEPT

A) it used Toltec architectural designs in designing a new and grander capital.
B) it contained huge markets to exchange gold and jewelry, pottery and baskets, meat, fish, fruit, and vegetables.
C) it was built on an island.
D) it was not easy to defend from other belligerent American Indian tribes.

ANSWER
Answer: D