What was created during the era of the Vietnam war that clearly proved how divided the people were?

In 1969, the new U.S. administration of Richard Nixon launched the first draft lottery since 1945 for recruiting men to serve in Vietnam. This event incensed the anti-war movement, caused a wave of acrimonious controversy and forced numerous young Americans to flee to Canada to avoid military service. The public mood was exacerbated, with tensions at the highes level,  and there were more mass demonstrations and violent incidents.

Explanation:

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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the answer is a) to be able to obey them.