Which of the Following Was Not True of Pueblo Bonito

Which of the following was not true of Pueblo Bonito?

A) It was the largest of Chaco Canyon's Great Houses, with over 600 rooms.
B) It is believed that Pueblo Bonito was used for ceremonial and astronomical purposes.
C) It contained two dozen kivas , or stone altars.
D) Some of the Great Houses, including Pueblo Bonito, may have stood as much as five stories high.
E) The Great Houses were constructed over a period of about three centuries.