A Distinguished Researcher Reviewed the Current Findings on the Etiology

A distinguished researcher reviewed the current findings on the etiology of mental disorders.Which of the following is the best summary of the consensus of opinion?

A) Most mental disorders are the result of genetic abnormalities.
B) We do not currently know all of the specific causes of most mental disorders.
C) Unconscious factors have been overlooked as the root cause of mental disorders.
D) Environmental factors have been overlooked in the wake of recent findings on biological etiologies.