Answer:
d. The Zimmerman Note was released.
Step-by-step explanation:
in 1917 British intelligence decoded Zimmermann Note to the German ambassador in Mexico proposing a military alliance against the United States, was a major factor in turning American public opinion against Germany during World War I.
In DeLome letter Spanish diplomat Enrique Dupuy de Lôme called the American President, William McKinley, "weak" & suggested that McKinley was only concerned about getting "the admiration of the crowd" rather than doing what was best for the country.
Germany did not keep its promise of the Sussex Pledge, which ultimately had severe consequences for the country and contributed to its defeat in World War I.
North Sea blockade was a crucial element of the Allied strategy during World War I and played a significant role in the outcome of the war.
Chatgpt