Which of the following is not one of the purposes of the european union?

a.
to attain economic equality

b.
to promote justice and equality

c.
to join forces against north america

d.
to simplify trade

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.