Answer:
the main reason why European countries set up colonies was because they wanted to gain raw material in order to increase their trade market and by having this colonies they were able to exploit African countries and get different raw materials to trade.
Your answers are B, C,and E. hope this has helped you.
Answer:
I believe the correct answer would be option B please let me know if I am correct . thank you . hope this helps.
It was caused by the sharp rise in the price of opium was seized upon by some of the Cohong trading houses and smugglers.