How did the Columbian Exchange contribute to an increase in Europe's population?

Question 5 options:

a)

Additional amounts of gold and silver boosted the European economy

b)

New inventions from the Americas helped Europeans travel and communicate faster.

c)

New foods like the potato provided sustenance (strength & nourishment) to Europeans.

d)

Natives and Europeans married each other.

c) New foods like the potato provided sustenance (strength & nourishment) to Europeans.