Which of the following best explains why the Aztecs were so warlike?

The Aztec held great power over the empire. One reason for their success was that the island location of their capital protected them from attack.  However, the island was marsh so it posed a major challenge for farming. But, the resourceful Aztec found a way. They built floating gardens called chinampas on which they grew crops. First, they piled up plants from the water. Then they anchored these rafts between trunks of willow trees. Finally, they heaped the lake's fertile mud on piles to create plots for farming. The Aztec grew many crops, such as maize, beans, squash, avocados, tomatoes, peppers, and flowers. They also raised turkeys, ducks, geese, and dogs for food.

Explanation:

c

the articles of confederation placed most of the power on the feds