According to the PRO article, what is the relationship between Columbus and diseases in the Americas?
A
Columbus brought many diseases to the Americas, but they did not harm people as much as violence.
B
Columbus brought the Black Death from Central Asia to Europe, and then brought it to the Americas.
C
Columbus brought several diseases to the Americas, and they were the cause of millions of deaths.
D
Columbus brought some diseases from Europe to the Americas, but he also brought new diseases back.
C
Columbus brought several diseases to the Americas, and they were the cause of millions of deaths.