Final answer:
Stimulus discrimination option (A) is the process in which an organism responds differently to specific stimuli but not to similar stimuli. An example is a cat responding to the sound of an electric can opener but not an electric mixer.
Step-by-step explanation:
The process described in the question is stimulus discrimination option (A). Stimulus discrimination occurs when an organism learns to respond differently to similar stimuli. In this process, the organism only exhibits the learned behavior in the presence of specific stimuli and not in the presence of similar stimuli. An example of stimulus discrimination is when a cat only comes running to the kitchen when it hears the sound of an electric can opener, but not when it hears the sound of an electric mixer.