With Regard to Freud's Explanation of "La Belle Indifference" (The

With regard to Freud's explanation of "la belle indifference" (the observation that conversion disorder patients are not concerned about their symptoms) , research conducted by Lader and Sartorius (1968) suggests that

A) conversion disorder patients do display "la belle indifference," but Freud's explanation of primary gain is not supported.
B) Freud's explanation is essentially correct since there is great variability in the amount of concern that conversion disorder patients display regarding their symptoms.
C) conversion disorder patients actually are quite concerned with their symptoms, so Freud's explanation of primary gain is not supported.
D) "la belle indifference" is a myth, thus validating Freud's explanation of primary gain.