Economists use gross national product (GNP) to measure economic output within a nation, regardless of ownership.
the output of foreign-owned businesses within a nation.
the output of a nation’s citizens, regardless of where they are.
any business activity taking place outside a country.

economic output within a nation, regardless of ownership.

Explanation:

Economists use gross national product (GNP) to measure  economic output within a nation, regardless of ownership.

apartheid, (afrikaans: “apartness”) policy that governed relations between south africa's white minority and nonwhite majority and sanctioned racial segregation and political and economic discrimination against nonwhites. people should not get this wrong. i was just answering a question.

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain