June's Cat Runs to the Kitchen at the Sound of the Electric

Multiple Choice

June's cat runs to the kitchen at the sound of the electric can opener,which she has learned is used to open her food when her dinner is about to be served.The cat does not run when a blender is used,although it sounds similar.June's cat is demonstrating stimulus:

A) control.
B) discrimination.
C) generalization.
D) diffusion.