Which economic system provided the most benefit in the long run?

a. capitalism
b. mercantilism
c. communism
d. barter system

napoleon the third became a empire in 1873 also known as the era of the franco-prussian war.

in londan the most because it was one of the growing countries

the answer is d because for c the actors can't love acting for the other's audience their not even in the same show, it can't be b either because the question is talking about the actors not the audience, and it can't be a because   it's not specific enough