(i think its C, correct me if i'm wrong pls)

after world war I, the U. S. practiced ___(1)___ as its foreign policy. this meant that when world conflict arose, the U. S. would try to remain ___(2)___?

a- (1) nationalism
(2) away from asian affairs

b- (1) internationalism
(2) an ally

c- (1) isolationism
(2) neutral

d- (1) imperialism
(2) partners with Europe

THANKS