The best answer here would be C.
Answer:
A convention is an agreement between 2 countries helping over a particular problem, less formal then a treaty . Also a convention is a gathering where people meet and discuss a problem or similar interests.
2. Ghana
-Known as the Gold Coast beforehand, their leader, <span>Kwame Nkrumah, was one of the people who greatly contributed to civilize Africa in persuading France to give up their ownership and control.</span>