C cause there is a 60% chance that that will be the answer sir
Answer:
Germany escalated its U-boat attacks in 1917 because of Germany's military buildup, the British blockade, and the use of submarine warfare. As war continued on land, Britain decided to use the tactic of the sea and their naval strength. Any ships that were found in the waters around Britain would be sunk.
Explanation:
SORRY IT"S THE SAME ANSWER
He led the October Revolution of 1917, in which the Communists seized power in Russia. He then ruled the country until his death in 1924. ... In short, Lenin called for the overthrow of the provisional government and its replacement with a communist form of government led by the working class. Lenin believed that a key policy of his government must be to withdraw from the ongoing First World War by establishing an armistice with the Central Powers of Germany and Austria-Hungary.
Does this help? :)