What was the result of the attack on the Lusitania?
a. Russia withdrew from the war.
c. Germany fortified its western front.
b. Japan joined the war.
d. America threatened to cut off ties with Germany.
One of the major results of the attack on the Lusitania was that "d. America threatened to cut off ties with Germany," since Americans had died in the attack. Two years later the US would declare war on Germany.
