Which of the following represents an achievement made by the Maya? A. Calendar systems B. Flosting gardens C. Quipu D. Terrace farming

The correct answer is A. Calendar Systems.

The idea of flosting gardens was developed by the Aztecs.

Quipi was created by the Incans.

Terrace farming was created by the Wari culture.

This shows that the only correct answer can be the Mayans. Their system of calendar provided a basis for several different cultures throughout the world.