Who was john marshall? a. a president of the u. s.a b. a supreme court justice c. the tresurer of the u. s d. the defense secretary

the answer im almost 100% sure is c. i could be wrong and if so, it should be answer b. hope i helped :)

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.