A Researcher,several Times a Day,sounds a Tone in a Monkey's

Multiple Choice

A researcher,several times a day,sounds a tone in a monkey's cage,then proceeds not to present a further stimulus.Later the researcher sounds a tone and drops nuts into the monkey's food dish.Despite the repetition of this tone-and-nuts presentation,the monkey has difficulty learning this association.This phenomenon is known as ____.

A) stimulus generalization
B) general learned irrelevance
C) stimulus discrimination
D) operant conditioning