Answer:
Correct answers are
D. de Gama
During the Columbian exchange Europe and America exchanged many products that changed the diet of the people. The people in Europe were introduced with tobacco, chocolate, sugar and many other products. On the other side Europeans brought to America horses, pigs, chickens and many other animals. Still, there were many negative consequences among which was the spreading of diseases, among which the deathliest was smallpox.
D. a detailed geographic coordinate system
Step-by-step explanation:
Columbus and Cabral were traveling to the New World, therefore they cannot be presented on this map. On the other side, Dias reached the Horn of Africa, but couldn't reach India. What he started was finished by De Gama.