(4) Exclusive marketing features Explanation: The Unique Selling Proposition (a.k.a. Unique Selling Point, or USP) Is a marketing concept that was first proposed as a theory to understand a pattern among successful advertising campaigns of the early 1940s. It states that such campaigns made unique propositions to the customer and that this convinced them to switch brands. The term was invented by Rosser Reeves of Ted Bates & Company.