Answer:
A. the seasoning of enslaved Africans
Explanation:
The term 'Seasoning' Refers to a disease outbreak that enslaved Africans gt after they're being put in a different environment.
Generally, African slaves were kept in a terrible condition, with very little hygiene, high humidity, and not enough sunlight. This caused many African slaves in Jamaica obtain various type of Tropical diseases, specifically Malaria (which is caused by mosquitoes bite).
The slave owners did not see any merit in treating the slaves, so most of the ones that infected were just left there without any medication. This explains the really high mortality rate.