Antebellum means : belonging to a period before a war
O worshipping or believing in only one god
O relating to an interior chamber of a house
O assisting a soldier on a battlefield

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.