Answer:
A. Caribbean sugar plantations.
Explanation:
Unlike other slavery models, most notably the U.S., the Carribean had such an ease of access to fresh slaves that a slave's life wasn't valuable. It meant that many died in transit, and those who didn't would be treated to hell on earth until they died. These terrible conditions are what would later prompt a violent uprising that ended in the brutal deaths of their enslavers. There is much more to this, but that's the basics.
