What was the primary way Chinese inventions were spread to the rest of the world? Prisoners told their captors how to recreate the inventions

Buddhist monks took the ideas to other parts of the world

Merchants along the Silk Road spread the new ideas across Asia and Europe

Marco Polo wrote about the new inventions in his book

C.  

Merchants along the Silk Road spread the new ideas across Asia and Europe

Explanation:

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

i think it was   tsar alexander ii