Why is it ? Maybe I can help
Your answer is D. All of the above.
I believe they were: Delaware, Maryland, Kentucky, Missouri, and Virginia
Battle of Britain, during World War II, the successful defense of Great Britain against unremitting and destructive air raids conducted by the German air force (Luftwaffe) from July through September 1940, after the fall of France. Victory for the Luftwaffe in the air battle would have exposed Great Britain to invasion by the German army, which was then in control of the ports of France only a few miles away across the English Channel. In the event, the battle was won by the Royal Air Force (RAF) Fighter Command, whose victory not only blocked the possibility of invasion but also created the conditions for Great Britain’s survival, for the extension of the war, and for the eventual defeat of Nazi Germany.
Answer:
Increase amount of war occurred in West Africa. European and American slave traders didn't go into African countryside and kidnap them, they bought slaves from coastal kingdoms. Because they wanted more slaves coastal kingdoms were encouraged to cause more war and raids against their neighboring kingdoms.
The coastal kingdoms became rich and more powerful due to the fact that they were able to get guns, and plenty of other things for slaves.
Slave traid took away millions of Africans in their prime, and this disrupted the cultures off the African nations, and we're less able to progress.
I hope this helped!