Answer:
C.
Step-by-step explanation:
The colonies of Belgian and Portuguese had to struggle longer than other British and French colonies. Belgian goverment, after World War II agreed to make Congo a self-government. But until the 1950s, they did not free the colonies, so, the people revolted and waged a war against the Belgian government.
Portugal was the first country to establish colonies in the world. And, the last one to step back from colonies. It was after African leaders rise up to stand against Portugal and fight for their independence.
Therefore, option C is correct.