Which of the following could be used as evidence for a hypothesis supporting the internal decline of the Mayas?(1 point)

1 A volcanic eruption destroyed Mayan civilization.
2 Figurines of non-Mayan figures were found.
3 The Toltec were aggressive neighbors to the Maya.
4 The region where the Maya lived suffered from two megadroughts.

4 The region where the Maya lived suffered from two megadroughts.