Pan-Africanism and Pan-Arabism were ideologies that aimed to achieve which of the following objectives, shaping the post colonial landscape of Africa and the Arab world? Choose the correct answer from the following:

Promote communism as an alternative political system
foster cooperation between Western and Eastern nations
Advance the interests of capitalist elites in Africa and the Middle East
Unify African and Arab nations against colonialism, imperialism, and racial discrimination

Unify African and Arab nations against colonialism, imperialism, and racial discrimination