Which of the following illustrates why Chichén Itza is an example of the Mayan’s knowledge of astronomy?

The temple includes ball courts for playing tlachtli.
The temple sits on a structured platform at the center of a large plaza.
The temple aligns with the spring equinox and creates a shadow serpent.
The temple is geometric in construction and has four similar sides.

The temple aligns with the spring equinox and creates a shadow serpent.