Hungry Pigeons Are Presented with Numerous Tone-Food Pairings

Multiple Choice

Hungry pigeons are presented with numerous tone-food pairings.The same birds are then presented with keylight- tone pairings and begin to peck at the keylight.Once keypecking develops, the birds are allowed to eat freely.Their keypeck behavior does not change.This suggests their response to the key is mediated by

A) S-S learning.
B) S-R learning.
C) R-R learning.
D) R-S learning.