Answer: Yellow Dog Democrats---C
Explanation:
The phrase "Yellow Dog Democrat" came into popularity during the 1928 presidential race between Democratic candidate Al Smith and Republican candidate Herbert Hoover, it was used to refer to committed members of the democrats who rather than vote a republican would vote a democrat like him or herself regardless of candidate's qualities or qualifications.
Slavery has historically been widespread in Africa, and still continues today in some countries.
Systems of servitude and slavery were common in parts of Africa, as they were in much of the ancient world. In many African societies where slavery was prevalent, the enslaved people were not treated as chattel slaves and were given certain rights in a system similar to indentured servitude elsewhere in the world.[citation needed] When the Arab slave trade and Atlantic slave trade began, many of the local slave systems began supplying captives for slave markets outside Africa.
Slavery in historical Africa was practiced in many different forms: Debt slavery, enslavement of war captives, military slavery, slavery for prostitution and criminal slavery were all practiced in various parts of Africa. Slavery for domestic and court purposes was widespread throughout Africa. Plantation slavery also occurred primarily on the eastern coast of Africa and in parts of West Africa. The importance of domestic plantation slavery increased during the 19th century due to the abolition of the Atlantic slave trade. Many African states dependent on the international slave trade reoriented their economies towards legitimate commerce worked by slave labor.