I believe that it was introduce after the french revolution
The imperialism had a massive effect on Europe, especially its western part. The countries that were imperial powers managed to get hold onto territories all over the world. By managing to control these territories, the imperialists had lot of natural resources and very cheap labor force at disposal. This enabled the industry in Europe to have constant growth, and the manufacturing to skyrocket, thus there were more and more products for the market, and more and more wealth was coming because of it, resulting in strong and well developed countries in Western Europe.
C is the answer to your question about your being in the wrong hope it help have go day /$
The money economy affected Africans lives because families and villages were torn apart as the men and other family members had to go find work outside of the village, and also created wealth differences.
