Answer: Altruism
Explanation: It refers to the behavior when an individual considers the benefit of other more important than the self benefit.
In the given case, the hotel chain has the sole purpose of providing best services to its customers. They are not ready to forego their dedication towards service even if it results in loss of their market share.
It is not a case of excellence as they are not charging extra for the same service to increase their profits.
Hence from the above we can conclude that the correct option is D.