The Distinction Between Psychogenic and Somatogenic Disorders __________

The distinction between psychogenic and somatogenic disorders __________.

A) will ultimately be a moot issue because all psychological events are based on neurophysiological processes
B) will remain with us until the discovery of the neurophysiological basis of learning and memory
C) is actually based on the differences between conditions with a known organic basis and those for which causes are as yet unknown
D) really amounts to saying that the most direct explanation of some disorders is at the psychological level, while for others it is at the organic level