Final answer:
Adults using cuss words in reinforced settings exemplify c)stimulus control, an aspect of operant conditioning where consequences like reinforcement and punishment influence behavior.
Step-by-step explanation:
The situation where adults learn to use cuss/swear words only in settings where it is socially reinforced, and not in other settings, is an example of stimulus control. This concept is part of operant conditioning, a form of learning where behavior is influenced by its consequences. Reinforcements and punishments shape how and when we exhibit certain behaviors. In this case, using swear words in certain contexts is likely followed by a reinforcing consequence (such as acceptance or laughter in a social group), which increases the likelihood of using them again in the same context. Conversely, avoiding swear words in professional settings where such behavior would be punished (e.g., receiving negative feedback or disapproval) is also learned through operant conditioning.