Which of the following statements about potlatching is not true? Select one: a. Potlatching is a case that proves that the profit-maximizing motive is a human universal. b. Potlatching is well documented among Native American communities of the North Pacific Coast of North America. c. Potlatching is a form of exchange that has long-term adaptive value. d. Potlatching was misinterpreted as a classical case of economically wasteful behavior. e. Potlatching is an example of competitive feasting