Respuesta :
The best answer is the geographic location: It was separated from Europe by a body of water (the Atlantic Ocean) that was not very easy or cheap to cross, and this provided a natural "barrier:
The other options would rather be obstacles to isolationism, not reasons that made it possible.
The other options would rather be obstacles to isolationism, not reasons that made it possible.
Answer:
D. Geographic location
Explanation:
took a quiz on it