Why did diseases from africa affect people in the americas in the early 1500s?

a some people from the americas had traveled to africa.
b africans were brought to the americas as enslaved people.
c africans moved to the americas voluntarily.
d europeans intentionally carried african diseases to the americas.

b

Explanation:

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d: their own individual powers within the new goverment

can you tell me all of statements so i can answer this for you.

until then have a great week.

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