Which of the following is considered to be the cause of decolonization of africa? a. the use of civil disobedience b. peaceful transfer of power c. war between the colonies and european powers d. african nationalism along with changing attitudes towards imperialism in european countries

The best answer is D. African Nationalism along with changing attitudes towards imperialism in European Countries. 

Following the end of World War II, many European countries and their African counterparts were seeking a change in government structure and independence. As a result, African nationalism surged throughout the continent and caused European leadership to see the need for a transition of power to the people of Africa rather than their colonial models of the past. Though this transition was not always seamless, many people in African countries would experience independence from European colonialism during the 20th century.