Trace Conditioning Differs from Delay Conditioning in Which of the Following

Multiple Choice

Trace conditioning differs from delay conditioning in which of the following ways?

A) Trace conditioning can be demonstrated in Aplysia,but delay conditioning cannot.
B) Trace conditioning does not require conscious processing by the forebrain,but delay conditioning does.
C) Delay conditioning involves a stimulus-free period between the conditioned and unconditioned stimuli,but the stimuli overlap in trace conditioning.
D) Trace conditioning involves a stimulus-free period between the conditioned and unconditioned stimuli,but the stimuli overlap in delay conditioning.