The bourgeoisie was a new social class created by capitalism. according
to many working class citizens, known as the proletariat, how did the
bourgeoisie gain and maintain their wealth?
a. the bourgeoisie became and remained wealthy at the expense of the
proletariat, who suffered in their factories.
b. the bourgeoisie got rich by stealing money from the noble classes, then hid
the money in special bank accounts.
c. the bourgeoisie made safe and slow investments in the growth of their own
factories and the factories of their friends.
d. the bourgeoisie took brave risks in the marketplace--luck and good timing
made them richer and richer.

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.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.