Between 1500 and 1700, there was continuous political instability in the African continent as a whole and in West Africa in particular.
This is because the 'Age of Exploration' of European countries had turned into an age of colonization where several major European power sought to control important resources all over the world.
Fueled by greed and power, these European countries were able to colonize the whole of Americas and then turned their eyes on the East.
West Africa served as an amazing area with abundant natural resources, timber, gold, diamond and most importantly people.
The Europeans eventually developed a sinister slave trade between West Africa ans the new World.
Millions of people were subjected to slavery and shipped to the new world, as European colonizers sought to topple local governments and control resources.
For 200 years, West Africa was in political and economic turmoil
It would be a "nerve cell" that is a specialized cell, since this cell has developed from a general stem cell (which can take practically the form of any cell) as has become a cell with a specific role in the body.
Slaves were mostly traded for "manufactured goods", since these goods came from England to Africa as part of the "Triangle Trade" that existed between Africa, the West Indies, and Europe.
When a nation took control of a control and ran it, their relationship was usually defined as being the colonizer and the colony.
So, the correct answer is colony.