What Is the Meaning of Following Term

What is the meaning of following term:
-Trans-Sahara slave trade

A) A trade in which Arab countries enslaved Africans from south of the Sahara.
B) A state of mind in which loyalty is given to the nation to which an individual belongs.
C) The native people of Sri Lanka.
D) Leader of the Congress Party in India.
E) A system of government in which power is centralized.
F) A governmental system, often implemented by colonists, that allows the people to maintain their institutions, languages, culture, and economic systems.
G) The religious practice of worshiping animals, rocks, plants, and other similar objects.
H) A group composed of individuals who generally share a sense of common identity based on factors such as a common culture, geographic location, and religious beliefs.
I) The theories that people are superior based upon their race or what skin color they have.
J) An American group that supported Africans' return to Africa.
K) An outdated term used by Westerners to refer to groups of indigenous people in Africa, Asia, and Latin America.
L) Leader of the Muslim League that founded Pakistan.
M) A conception of the self, a selection of physical, psychological, or social attributes of particular individuals.
N) The Ibo region that declared its independence from Nigeria.
O) The presence of many different groups within a specific geographical boundary.