Kentucky was a border state.
The answer is letter A. "<span>An air battle above the English Channel to prepare for an invasion of Britain"</span> It was an aerial battle as the Germans sent their air force to drop bombs on Britain. Many civilians lost their lives and various buildings were destroyed but thanks to the leadership of British Prime Minister Winston Churchill, the British people withstood the bombardment and the Royal Air Force fought back with U.S. support preventing Germany from conquering Britain.
The policy contributed most to the nuclear arms race was Mutual Assured Destruction
This means that both sides knew that any attack upon the other would be devastating to themselves, therefore restraining them from attacking the other. Each side possesses enough nuclear weapons to obliterate the other side that causes them to restrain from attacking afraid of the annihilation.
The answer is
B) it was written in the middle of the 18th Century