What Do Your Authors Mean When They Suggest That the DSM

What do your authors mean when they suggest that the DSM encourages us to "think organic"?

A) It means that we should remember that many symptoms that appear psychiatric in nature can be caused by physical events, and we should be cautious about overdiagnosing mental disorders.
B) It means that the research has found conclusive evidence that herbal supplements are superior to chemical psychotropic medications in the treatment of mental disorders.
C) It means that the APA (American Psychological Association) has agreed to stop printing the DSM in paper form in future editions and will go to a strictly electronic format, to be more "eco-friendly".
D) It means that research has found that virtually every mental illness can be traced to malfunctions of a specific organ in the body, and thus a return to the purely medical model is the best chance for those with these illnesses to recover.