Read the quote below and answer the following question.

“ii. absolute freedom of navigation upon the seas, outside territorial waters, alike in peace and in war, except as the seas may be closed in whole or in part by international action for the enforcement of international covenants.” - president woodrow wilson

which of the following events in world war i, would cause president wilson to push for his second point of peace?

select one:
a. none of the above
b. the use of new weapon warfare.
c. the sinking of the lusitania