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 wrestler in japan, meanwhile, earns only 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. done

Explanation:

The text emphasizes that ranking in sumo affects various aspects of a wrestler's life (money, entourage, diet, etc.). If ranking is everything (as in it governs all these life - aspects which are incentives), then there is a strong incentive structure. A wrestler's ranking being so all - encompassing (ranking is everything) creates a situation where the incentives (better life, more money etc. based on ranking) can lead to cheating. The other options either state a fact (every wrestler has a ranking) which is too basic to directly support the claim about incentive - based cheating, or mention a single aspect (ranking affects diet) which is not as comprehensive as the idea that ranking is everything. The mention of makuuchi and juryo divisions is just a description of the sumo elite structure and not directly related to the incentive - cheating link.

Answer:

Ranking is everything.