Final answer:
The Gullah people in South Carolina and Georgia are known for their expertise in rice cultivation.
Step-by-step explanation:
The Gullah people in South Carolina and Georgia are most known for their expertise in rice cultivation. Rice cultivation and processing were mainly women's work, and the Gullah people brought three rice cultivation techniques to the plantations: sowing in trenched ground, open trench planting, and tidal rice cultivation. They also introduced sophisticated soil and water management techniques that were crucial to developing a thriving rice plantation system.