When World War I began, the official United States policy was A) to enter on the side of the Allied Powers. B) to enter on the side of the Central Powers. C) to remain militarily and politically neutral. D) to support the Central Powers by providing war materials

What is the columbian exchange? o a. the changes that resulted from europeans settling in the new world b. the relationships that columbus and his men had with the natives they met o c. the ships that columbus bought with money from the king and queen of spain o d. the increase in the number of native american towns in the new world