(A) socialists
(B) ** anti-Imperialists
(C) dollar diplomats
(D) pro-imperialists
EXPLANATIONS BELOW
Concept note-1: -It included among its members such notables as Andrew Carnegie, Mark Twain, William James, David Starr Jordan, and Samuel Gompers with George S. Boutwell, former secretary of the Treasury and Massachusetts, as its president.
Concept note-2: -The league argued against militarization and the creation of an overseas American Empire and asserted that the principles the United States had been founded upon needed to extend to foreign policy as well.
Concept note-3: -Anti-imperialism also grew rapidly in India and formed a core element of the demand by Congress for independence. Much of the impetus came from colonial students studying at Oxford and Cambridge, such as Mahatma Gandhi.