Answer:
Cotton
Step-by-step explanation:
Corn has been making profit for a long time, so it did not make the most profit in the 1900's. Wheat has also been around for hundreds of years, so thats not the crop making all the money. Cotton seed come FROM the actual crop, cotton, meaning that the seed itself is not a crop. Lastly, cotton in the 1900's was a very famous crop that was being picked by mostly African - american slaves, and it was a Cash Crop, meaning that it made a lot of money. So in conclusion, Cotton is the correct answer. A.