(A) The government took part in military operations in Europe before 1917.
(B) American citizens wanted to join the war in Europe from its start in 1914.
(C) The government tried to gain support for the war from the start of the war.
(D) ** American citizens wanted to stay neutral until innocent Americans were killed.
EXPLANATIONS BELOW
Concept note-1: -Lusitania Sinks On May 7, 1915, a German submarine sank the British ocean liner Lusitania, resulting in the deaths of nearly 1, 200 people, including 128 Americans. The incident strained diplomatic relations between Washington and Berlin and helped turn public opinion against Germany.
Concept note-2: -On December 7, 1941, following the Japanese bombing of Pearl Harbor, the United States declared war on Japan. Three days later, after Germany and Italy declared war on it, the United States became fully engaged in the Second World War.
Concept note-3: -During World War II, the United States began to provide significant military supplies and other assistance to the Allies in September 1940, even though the United States did not enter the war until December 1941.