Amit's favorite soft drink is Diet Dr Pepper. She orders a Diet Dr Pepper in a restaurant and is told that the restaurant serves only Pepsi products, so Amit orders water instead. She also insists that she can taste the difference between Diet Dr Pepper and Diet Pepsi. Which learning concept is Amit demonstrating

Stimulus discrimination

Explanation:

Stimulus Discrimination is simply the response of an organism (humans or animals) to learning or recognising various stimuli that are similar. It is a response or a behavior of an organization that leads to a consequence in a particular setting and another consequence in other settings.

The act of empowering a response in the presence of one stimulus and extinguishing it in the midst of another is simply stimulus discrimination

the answer is d.index