A: Cuba, when that happened it was also called the Cuban Missile Crisis.
The answer is A because many people attacked the Emancipation Proclamation because it allowed some states to continue to use slave labor. Border states such as Maryland and Delaware, which had remained loyal to the Union, were allowed to continue using slave labor, as were any states already under Union control.
They feared them because they were fearless and were very mischievous and didn’t care what anyone else thought of them.