The right of the United States’ national government to establish post offices, regulate commerce with foreign nations, and declare war, all on behalf of the constituent states, are referred to as which of the selections listed below?

alaska is the answer to this

norsemen from northern countries had made earlier journeys

i believe the answer is c

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.