Question

what was one of president wilsons fourteen points?
establishing a league of nations
imposing tariffs on trade
restoring the alliance system
maintaining a sea blockade on germany

Explanation:

President Wilson's Fourteen Points included the proposal to establish a League of Nations to promote international cooperation and peace. Imposing tariffs on trade was not a part of the Fourteen Points (tariffs were more related to economic policies not in the Fourteen Points' focus), restoring the alliance system was against the idea of the Fourteen Points which aimed for a new international order, and maintaining a sea blockade on Germany was a wartime measure not part of the Fourteen Points (the Fourteen Points were about post - war peace plans).

Answer:

A. establishing a League of Nations