I'm sorry I thought I knew the answer sir.
The correct answer is Eliza Pinckney
Elizabeth Lucas Pinckney drastically changed the way agriculture was done in South Carolina, she created indigo and revolutionized the way people worked in agriculture, she was the main responsible for the agricultural revolution and the way that agriculture plays a leading role currently in the industry.
Stiffer mantle is the answer
The only one that makes sense is C. Diagnosis