Answer:
All of these
Step-by-step explanation:
The Maya, Inca, and Aztec civilizations all studied celestial bodies. The Maya, in particular, were known for their advanced astronomical knowledge and their ability to predict astronomical events with great accuracy. The Inca also had a deep understanding of astronomy and used it to develop their calendar system. The Aztecs, too, were skilled astronomers and used their knowledge of the stars to develop their own calendar.
Therefore, the correct answer to your question is option 4: All of these.