Answer:
Correct answer is Pan Africanism .
Step-by-step explanation:
Imperialism is not correct as imperialism was a period when European countries colonized and abused the African continent, taking their resources.
Pan Africanism is a movement that started spreading as result of fight against slavery, racism, but also imperialism and colonialism.
Independence is a goal that every country has, and therefore isn't connected with unity of certain group, religious, racial or any other.