The opportunity cost of a decision can be examined by using a

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; ///(c) i believe that the correct answer is ethnic relations bear many similarities across different global; good luck

all of them lol cause theres no map