Answer: Customer delight
Explanation: Customer delight refers to the concept of surprising the customer by providing them the level of service which gives them full satisfaction or sometimes even exceed their expectations.
This concept is taken seriously by managers specifically in hospitality industry, in which the work is highly related to the performance and not the price.
In the given case, Ritz-Carlton is providing their customers the best service by providing for utilities before they even ask for it. Thus, they are focusing highly on customer satisfaction.
Hence from the above we can conclude that the correct answer is customer delight.