How Did Freud Explain Conversion Disorder

How did Freud explain conversion disorder?

A) He argued that people with the disorder had converted unconscious conflicts into defence mechanisms expressed as physical symptoms.
B) He argued that people with the disorder experienced real physical illness as a result of internal conflict.
C) He argued that people with the disorder experienced physical symptoms as a result of the superego.
D) He argued that people with the disorder converted unconscious conflicts into physical symptoms.