Answer:
those who were told that the injection would cause them to become physiologically aroused
Step-by-step explanation:
Epinephrine, also known as adrenaline are associated with the feeling excitement and joy. This can also be used for arousal. Now the spillover effect suggests that one event can effect another event even if they are unrelated due to a contextual factor. Here, it must be kept in mind that epinephrine injects physical excitement and if the college men are told that the injection would cause them to become physiologically aroused then there brain will turn that physical excitement or joy or even irritation into arousal. Hence, they will be least likely to experience the emotion demonstrated by the experimenter's accomplice.