which statement below best defines the north american core? it: group of answer choices encompasses a great rectangle from boston to washington to st. louis to milwaukee and includes southernmost ontario. incorporates the subsidiary cores of california and british columbia into a continent-wide network. consists of the prime farmlands of the midwest (the corn belt) and the eastern states. lies astride the united states-canadian boundary westward from the area of the great lakes, extending to british columbia (including vancouver) and washington (seattle).
