Which of the following is true about the Olmec people? A. They lived in modern-day Africa, and produced pyramids
B. There lived in modern-day Africa and there were no nearby waterways
C. They lived in modern-day Mexico, and produced rubber
D. They lived in modern-day Mexico, and did not produce any art or artifacts

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