Define each of the following: League of nation, status quo, puppet state, Manchuria, two fronts 

Legue of nation-The League of Nations, abbreviated as LON, was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. Founded on 10 January 1920 following the Paris Peace Conference that ended the First World War, it ceased operations on 20 April 1946.
Status quo-Status quo or Statu quo is a Latin phrase meaning the existing state of affairs, particularly with regard to social or political issues. In the sociological sense, it generally applies to maintaining or changing existing social structure and/or values
Puppet state-A puppet state, puppet régime or puppet government is a state that is de jure independent but de facto completely dependent upon an outside power and subject to its orders
Manchuria-Manchuria is an exonym for several large overlapping historical and geographic regions of Russia and China in Northeast Asia.
Two fronts -According to military terminology, a two-front war occurs, when opposing forces encounter on two geographically separate fronts. The forces of two or more allied parties usually simultaneously engage an opponent in order to increase their chances of success.

Iwould say c is the best answer choice