What suggestion is made about the former purpose of the various ruins he could see？A．they

What suggestion is made about the former purpose of the various ruins he could see？

A．they had formed part of the capital of a new Mayan kingdom.

B．They were what remained of a temple to sky gods.

C．They Were what was left of the starting point from which the Mayans had moved to new territory.

D．They were what remained of the farthest city reached in a large-scale Mayan migration.