(A) ** True
(B) False
EXPLANATIONS BELOW
Concept note-1: -The note revealed a plan to renew unrestricted submarine warfare and to form an alliance with Mexico and Japan if the United States declared war on Germany. The message was intercepted by the British and passed on to the United States; its publication caused outrage and contributed to the U.S. entry into World War I.
Concept note-2: -The sinking of the Lusitania was the most notorious and deadly of several German submarine attacks in early 1917–attacks that were a key factor in the United States’ decision to abandon a policy of neutrality and enter the war.
Concept note-3: -Nearly 10% of Americans identified as ethnic Germans, most of whom hoped the United States would remain neutral in the war. Public opinion began to shift away from neutrality following Germany’s sinking of the Lusitania in May 1915, which resulted in the deaths of nearly 1, 200 passengers, including 128 Americans.
Concept note-4: -To be sure, the Zimmermann telegram by itself didn’t force the United States’ entry into World War I; that would come five weeks after the telegram was made public, when the Senate and the House passed war resolutions.