Th great American patriot and signer of the Declaration of Independence that played the role of Chief diplomat for the colonies throughout the Revolutionary War period was Benjamin Franklin. the correct option in regards to the given question is option "C". Benjamin Franklin was born on 17th January 1706 and died on 17th April 1990. He is considered as one of the founders on the United States of America. He was a multifaceted person. On the one hand he was an author, scientist and inventor, while on the other hand he was also a great political theorist and a politician.
