Answer:
b. Pan-Africanism.
Step-by-step explanation:
Pan-Africanism is the concept of the unity of the indigenous and diverse people of the African community. This ideological concept was pioneered and advocated by the many leaders including Kwame Nkrumah who said this quote.
The basic concept of this movement is to encourage and strengthen the bonds of the African community in the world society. Kwame Nkrumah was one of the pioneers of this ideology and also the first Prime Minister and President of Ghana. In his quote, he implored on the African people to work together if they are to fight for their freedom. He appealed to the people to "unite" if they are "to enjoy the full benefits of Africa's enormous wealth". This will bring about the successful achievement of their aim, which also caters to the "interest of all our people".