Final answer:
Responding 8 to the prompt '3+5' and 15 to the prompt '3x5' is an example of stimulus generalization.
Therefore, the correct answer is: option B) Stimulus generalization
Step-by-step explanation:
Stimulus generalization is the evocation of a nonreinforced response to a stimulus that is very similar to an original conditioned stimulus. The stimulus generalization model presupposes identical elements that enable generalization to occur.
For example, if Tiger the cat is conditioned to respond to the sound of the can opener with excitement because it signals feeding time, but she does not respond the same way to the sound of the electric mixer, that is an example of stimulus discrimination.
On the other hand, if Tiger responds to both the can opener and the electric mixer because they sound similar, that is an example of stimulus generalization.
Therefore, responding 8 to the prompt '3+5' and 15 to the prompt '3x5' is an example of stimulus generalization.