Which is *not* an accurate description of the columbian exchange and its consequences?

a: europeans were introduced to foods from the americas such as potatoes corn tomatoes and chocolate

b: many african slaves went to the caribbean islands in brazil to work on sugar plantations after a decline in the native population

c: most of the native population was immune to the disease is introduced to the americas from the eastern hemisphere

d: columbus brought horses cows sheep chickens and pigs from europe to the americas