Which of the following states the fundamental marketing principle that applies to channel decisions? When a particular member of a marketing channel is eliminated, the cost of a channel operation is always reduced. The structure of a marketing channel is such that changes in the structure often result in changes in the functions that must be performed. Channels of distribution operate in such a way that it is virtually impossible to change the structure of an existing channel. Eliminating independent wholesalers from a marketing channel should increase profit margins of other channel members by at least 10 percent. You can eliminate some of the members of a marketing channel, but you cannot eliminate the marketing functions that must be performed