Which one of the following is an accurate statement regarding a hotel's ability to change their comp set? A) A hotel can only change their comp set at the beginning of the year. B) A hotel can add a single participating hotel to its competitive set at any time. C) The requirement that changes include two or more hotels ensures confidentiality by not isolating data of a single competitor hotel. D) A subject hotel can immediately remove a single hotel from its comp set the same month that it closes