Answer:
B. The rapid spread of foreign food crops
Step-by-step explanation:
The first transatlantic interactions between Europe and the Americas are commonly known as the Columbian Exchange.
In this exchange, there was an immense spread of foreign foods, animals, people, and diseases between the two hemispheres.
As people moved in large amounts, they brought a variety of different food crops with them, which were brand new to the area.
So, these first transatlantic interactions produced B. The rapid spread of foreign food crops.