Answer:
Right choice: isolationism and neutrality.
Step-by-step explanation:
Isolationist views and feelings have always existed in the USA. Isolationism was strong during the first years of WWI. It was seen as another of those endless and wicked wars fought by selfish European powers. The US public mood changed after a German submarine torpedoed and sank the British liner Lusitania. 1,110 people died, including 120 Americans.