Mitzi and Her Husband Went Out for a Nice Dinner

Multiple Choice

Mitzi and her husband went out for a nice dinner, where Mitzi ordered a Diet Coke to go with her meal. When her drink was served, she took one sip and made a disgusted face. "That's not Diet Coke," she said with an irritated look. "That's a Diet Pepsi." Mitzi's ability to distinguish one soft-drink from another demonstrates

A) stimulus overlap.
B) stimulus discrimination.
C) stimulus generalisation.
D) higher-order stimulation.