Answer:
several severents were settlers who paid for thier passage to america by working without pay for a period of time
Based on documentation,
The only 2 African countries that were able to keep their freedom from European imperialism were;
B: Ethiopia and Liberia.
Ethiopia is currently the worlds oldest independent country and Liberia was founded to support the U.S. in relation to slavery in 1821.
I hope this has aided you and is sufficient.
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It benefited the elderly people after retirement.