Who like jxdn's song angels and demons ?? 100 points

An educatethe yuan dynasty was responsible for which of the following: i. improving the road system ii. increasing sea trade with india and south east asia. iii. extending the canal system iv. brutal warfare and ruthless killing of people in order to take over china. a. i & iii c. iv only b. ii only d. all of the above member of the government

Which statement best explains how the invention of corporations contributed to the economy in the 1800's

What are some inventions during the han dynasty?