What was a result of farming improvements in ancient China? O People took on other kinds of work.

O Ivaders from the north increased raids.

O Traders stopped using the Silk Road.

O Builders constructed the Grand Canal.

In 1816, john c. calhoun proposed that: a. that the federal government aid in the construction of roads and canals to improve transportation to and from the west b.the united states should end slavery. c.the united states should increasing the size of the navy and invade central america. d. the united states should annex hawaii