The efficiency and productiveness of many large cotton plantations found in the south during the first half of the 19th century made most plantation owners economically dependent on a) slave labor. b) hired field hands. c) captured native americans d) wage earning white workers.

The efficiency and productiveness of many large cotton plantations found in the south during the first half of the 19th century made most plantation owners economically dependent on A) Slave labor

As a result of introducing the cotton gin, slavery was reinvigorated.  In fact, plantation mistresses commanded a sizable household staff of mostly female slaves.

both include an amendment process.