Spontaneous Recovery Is Said to Occur When a

Multiple Choice

Spontaneous recovery is said to occur when a

A) previously extinguished CR suddenly reappears after an interval of time has passed.
B) CR is elicited by a stimulus similar to the one used during acquisition training.
C) CR is elicited by one CS but not other (neutral) stimuli.
D) UCR is no longer elicited by the UCS.
E) CR is no longer elicited by the CS but only by the UCS.