(A) ** neutral, but extensively traded with the Allied Powers
(B) neutral, but extensively traded with the Central Powers
(C) complete neutrality with no involvement on either side.
(D) nationalist
EXPLANATIONS BELOW
Concept note-1: -When WWI began in Europe in 1914, many Americans wanted the United States to stay out of the conflict, supporting President Woodrow Wilson’s policy of strict and impartial neutrality. “The United States must be neutral in fact as well as in name during these days that are to try men’s souls.
Concept note-2: -However, by 1917, the continued submarine attacks on U.S. merchant and passenger ships, and the “Zimmermann Telegram’s” implied threat of a German attack on the United States, swayed U.S. public opinion in support of a declaration of war.
Concept note-3: -When war broke out in Europe in 1914 President Wilson declared that the United States would follow a strict policy of neutrality. This was a product of a longstanding idea at the heart of American foreign policy that the United States would not entangle itself with alliances with other nations.