Answer:
The answer is A. They did not have to pay their workers.
Step-by-step explanation:
In the sharecropping system, the main advantage that the land owners had was that they were able to pay their workers by giving them a share of the crop/Harvest and not in cash.
This gave a tremendous advantage for the land owners as they could save money and reinvest in other means (more lands and tangible assets), increasing their wealth significantly and the gap between the rich and poor grew as well.