Which of these best explains why the united states did not join the league of nations?

B) After World War I many Americans were wary of becoming too entangled in European affairs and favored a more "isolationist" approach.

Explanation:

Even though the creation of the League of Nation was a proposal of the American President Woodrow Wilson, the United States decided not to join it. Tired of becoming too entangled in European affairs during World War I, Americans preferred to adopt an isolationist policy, to stay out of global affairs, avoid political or economic alliances that didn't serve their interests and, instead, to focus on domestic issues

the andes or andean mountains (spanish: cordillera de los andes) are the longest continental mountain range in the world, forming a continuous highland along the western edge of south america. this range is about 7,000 km (4,300 mi) long, about 200 to 700 km (120 to 430 mi) wide (widest between 18° south and 20° south latitude), and of an average height of about 4,000 m (13,000 ft). the andes extend from north to south through seven south american countries: venezuela, colombia, ecuador, peru, bolivia, chile and argentina.

from wikipedia

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