Answer:
The correct answer is C: John Milton Hay
Step-by-step explanation:
John Milton Hay (1838 – 1905) was an American statesman and official whose career in the U.S. government lasted almost half of the century.
He began as Private Secretary and Assistant to Abraham Lincoln, and his most important position was a Secretary of State under presidents William McKinley and Theodore Roosevelt.
He worked as a Secretary of State for almost seven years. He was responsible for negotiation to an open door policy that kept China open to trade with all countries. He also influenced the construction of the Panama Canal and he was one of the main statesman who were responsible for the project.