He was elected by popular vote, so I believe it would be C.
Operation Barbarossa was the Nazi German military invasion of the "USSR", since this was the famous surprise attack by Germany that broke the Nazi-Soviet Pact in World War II.
Many Americans were exposed to the ideas of the federalists by the "Federalist Papers".
Answer:
I think the JFK assassination is very sad.
Explanation:
Because he was a great president and then for someone with the other belief go out and kill him is very wrong and sad.
Fun facts.
If you find a machine which goes in a speed of 3×10^8 m/sec, you can see the past and future. You can even travel for longer distant objects like stars