Which best describes the process of "adaptation" in sensory receptors?

A)Information from sensory receptors reaches the cerebral cortex and the person becomes aware of it
B)Conversion of the energy of a stimulus into a pattern of electrical activity
C)Persistence of the sensation of a limb even after it has been severed from the body
D)A decrease in receptor sensitivity despite continuation of a stimulus
E)A depolarization of receptive membrane that increase in magnitude as the stimulus intensity increases