The AESOP Model Introduces the Principle That ______

The AESOP model introduces the principle that ______.

A) each unconditioned stimulus elicits two distinctive A2 reactions,one elicited by the emotive properties of the unconditioned stimulus and the other by the sensory properties of the unconditioned stimulus
B) one conditioned stimulus can only support one reaction
C) backward conditioning and delay conditioning procedures produce conditioned responses of the same strength
D) conditioning of fear occurs much easier than conditioning of a salivary reaction