The correct answer here is Asia, Africa and Europe.
The Silk Road is one of the most important trading networks that ever existed in the history of mankind and it is preserved as UNESCO World Heritage Site. It connected the East and the West and it was central for both the economic and cultural interaction between two parts of the world.
The best option from the list would be that "<span>b. The United States began to build up its military and to stockpile weapons," since this was part of the inevitable "Arms Race" that took place between the US and the USSR. </span>
Nashville tenessee is correct
Enlightenment thinkers believed that all citizens are born with natural rights