Conditioned an 11-Month-Old Baby Named Albert to Fear a White

Multiple Choice

conditioned an 11-month-old baby named Albert to fear a white rat by pairing it with a loud noise.Albert already feared the loud noise.After the conditioning had taken place,the researchers also found that Albert was afraid of furry white and grey objects,such as a rabbit and a Santa Claus mask.The fact that Albert was afraid of these additional items demonstrated that:

A) stimulus generalization had occurred.
B) discrimination had occurred.
C) extinction had occurred.
D) higher-order conditioning had occurred.