One thing that was shared by accident during the Columbian exchange was B. Germs.
the Columbian exchange refers to the trade of goods, people, services, and ideas between Africa, Europe, and the Americas.
as a result of people from these continents mingling, germs were spread and people (mostly American natives) died in the millions from not having immunity.
find out more on the Columbian exchange at https://brainly.com/question/14088518.
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