What was the principal objective of the O.A.U. at the time of its formation in 1963?

Here are the answers to the questions:

40. What was the principal objective of the O.A.U. at the time of its formation in 1963? The correct answer is D. To end colonial rule in Africa. While promoting unity and cooperation was also important, a primary and unifying objective for the newly formed Organization of African Unity was the complete liberation of the continent from all forms of colonialism and apartheid.

41. The industrialization of European economies in the 1870s had its origin from... The correct answer is D. Britain. The Industrial Revolution, which marked the beginning of modern industrialization, originated in Great Britain in the late 18th century and subsequently spread to other European countries.

42. Otto Von Bismarck's main foreign policy objective was... The correct answer is A. The isolation of France. After the unification of Germany, Bismarck's primary foreign policy goal was to maintain peace in Europe and secure Germany's position by preventing France from forming alliances that could threaten Germany. He achieved this through a complex system of alliances designed to keep France diplomatically isolated.