[Solved] The first thing the TSA agent required was that both patrons would need to go through: A)plain X-rays. B)backscatter X-rays. C)lie detectors. D)naked scanners. E)red ion scanner. Blisspoint: The optimal level of satisfaction or pleasure for a consumer, often used in food industry to describe the perfect balance of saltiness, sweetness, and fattiness. Contingent Responses: Behaviors or actions that are performed in response to specific conditions or stimuli, often depending on the presence or absence of certain factors. Reinforcing Activities: Activities or actions that increase the likelihood of a behavior being repeated by providing a positive outcome or reward. Premack's Probability-Differential Theory: A theory that suggests more probable behaviors will reinforce less probable behaviors.