All but Which of the Following Are Difficulties with the Concept

All but which of the following are difficulties with the concept of repression, as presented by Freud?

A) Freud's concept of repression does not account for ordinary forgetting.
B) Many people who have been traumatized retain vivid, fragmented memories of their experiences.
C) Many victims of trauma have difficulty putting the events out of their minds.
D) Since repression operates unconsciously, it is almost impossible to test scientifically.
E) Today, most experts believe that repression does not occur.