Classify each of the following transactions as belonging primarily to the sphere of international trade analysis (t) or international monetary analysis (m). (enter t for trade or m for monetary.)
1) foreigners purchase us dollars.2) us imports crude oil from the middle east.3) us imposes tariffs on foreign steel.4) the chinese government purchases us treasury bonds5) the chinese currency is seen as being undervalued

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.

the correct answer is a

answer; (d) all of the above; 100%