Answer:
In what is sometimes referred to as the "Revolution of 1800", Vice President Thomas Jefferson of the Democratic-Republican Party defeated incumbent President John Adams of the Federalist Party. The election was a realigning election that ushered in a generation of Democratic-Republican rule.
Explanation:
It was "B. Philippe de Vitry" who was a Medieval composer and was also a politician and author famous for his writings on music theory, since at the time not many people knew the fundamentals of such theory.
The answer is B. Celts.
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Celts believed that collecting heads after a battle was one of the greatest honors. Heads were their trophies.
If I remember right, it is "The Camp David Accords"