Answer:
Based on the excerpt, the statement which best summarizes the incentive system that ranks sumo wrestlers is:
B. The incentive system rewards elite sumo wrestlers.
Step-by-step explanation:
An incentive system is a system used to motivate people to perform better. Money in the form of a bonus, for instance, can be given to employees who have performed at a higher level than others.
In the passage we are analyzing here, the incentive system for sumo wrestlers works by dividing them into different ranks. The ones who rank better - the elite - are treated like royalty. On the other hand, the ones who rank low are supposed to clean, cook for, and even bathe the elite players. As we can see, there is a clear distinction in the way they are treated. Therefore, we can safely say that letter B is the best option:
The incentive system rewards elite sumo wrestlers.