[Solved] In the business of prostitution, "Johns" refer to A)pimps. B)customers. C)pornographic web sites. D)male prostitutes. Negative Exponential: A type of mathematical function that decreases rapidly from a positive value toward zero, often used to model decay or depreciation processes. Last-In, First-Served: A method of service or processing where the most recently arrived item or request is dealt with first, opposite to the first-in, first-served principle. Queue Discipline: The order or method by which queue (wait line) elements are selected for service. Limited Queue Length: A queue system in which the total number of items or customers that can wait in line is capped or limited.