The concept of refers to a shared way of life, and the term refers to a political entity.

answer; (d) none of the above;

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.

answer; reactive is your answer; good luck