B and C
The Mayans were polytheistic (worshiped multiple deities) so A is incorrect.
They had their own form of hieroglyphics so B is correct.
The practice of astrology was one of the most important aspects of Mayan culture, and they supplemented their knowledge of the stars using math to figure out complex patterns so C is correct.
It was the Incas, NOT the Mayans who had runners, so D is incorrect.
c. free speech
John Dickinson authored Letters from a Farmer in Pennsylvania. He created a draft of fifteen proposals, criticizing the Stamp Act as unconstitutional. Because of his letters, the Stamp Act was revoked after only four months of the unproductive process.
Nutrient-rich soil for farming
If you remember, a lot of Okies went to California during the Depression because they had "ruined" the land to the point they couldn't use it anymore
Cultural and psychological anthropology