Why Has the Use of Pre-Frontal Lobotomy as a Treatment

Why has the use of pre-frontal lobotomy as a treatment for mental disorders decreased over the past century?

A) Powerful drug treatments have been developed, and drug treatments are less invasive than psychosurgery.
B) None of the surgical procedures that were formerly used resulted in any real improvement, so they were all abandoned.
C) It has been banned by the United Nations.
D) It has been determined that this procedure is the best treatment for a number of subtypes of schizophrenia, but there are few individuals with those disorders.