Both a and c are correct, however I think that A would be the most correct answer in this case.
They were first mentioned by the political philosopher John Locke. He was very influential for the founding fathers who based the ideas of rights that are self evident on his philosophy. According to him, the natural rights were those of life, liberty, and property, a bit different than what ended in the final documents.
The correct answer is Head Diplomat.
Many are the roles of a Foreign Policy Leader (also known as a Head Diplomat or Chief Diplomat), such as recognizing the legitimacy of a foreign nation, appointing ambassadors, establishing foreign policies, making treaties, making executive agreements. In the United States, the president is also the Chief Diplomat.
The correct answer is D. Leonardo da Vinci
Da Vinci was the artists who made a lot of sketches of different things.
