Personally, i don't think he is.
John Brown Believed that the only way to overthrow the institution of slavery is by doing an armed revolt. We have to aware that in his Era, slavery is very common. Is like owning a dog in this era. He probably tried to convince the slave owners to realize the value of human's dignity no matter what the race is but nobody agrees with his point of view.
Answer:
12. True
13. False. Correct would be social structure
14. True -> it says most
15. False
An ambassador is the President's highest-ranking representative to a specific nation or international organization abroad. ... A key role of an ambassador is to coordinate the activities not only of the Foreign Service Officers and staff serving under him, but also representatives of other U.S. agencies in the country.
Phone, Money, Transportation....