Question

the incentive scheme that rules sumo is intricate and extraordinarily powerful. each wrestler maintains a ranking that affects every slice of life; how much money he makes, how large an entourage he carries, how much he gets to eat, sleep, and otherwise take advantage of his success. the sixty highest - ranked wrestlers in japan, comprising the makuuchi and juryo divisions, make up the sumo elite. a wrestler near the top of this elite pyramid may earn millions and is treated like royalty. any wrestler in the top forty earns at least $170,000 a year. the seventieth - ranked
which of the following central ideas from the paragraph is a reason that supports the claim \cheating exists because of incentive.\
○ every wrestler has a ranking.
○ ranking affects your diet.
○ the makuuchi and juryo divisions make up the sumo elite.
○ ranking is everything.

Explanation:

The claim is that cheating exists because of incentive. The text shows that ranking (an incentive - related aspect as it affects so many aspects of a wrestler's life like money, entourage, etc.) is of great importance. Saying "Ranking is everything" implies that due to the high - stakes nature of ranking (which is an incentive), it could lead to cheating. The other options either state a simple fact ("Every wrestler has a ranking") that doesn't directly show the incentive - cheating link, or mention something not relevant to the claim ("Ranking affects your diet" is too narrow compared to the overall impact of ranking as an incentive) or a classification ("The makuuchi and juryo divisions make up the sumo elite" which is about the structure of sumo, not the incentive - cheating relationship).

Answer:

Ranking is everything.