Although Mary Has Significant Psychological Distress, She Is Much Less

Although Mary has significant psychological distress, she is much less likely to undergo psychosurgery today than she would have been 60 years ago. This is because __________.

A) surgery is much more dangerous now than in the past
B) it is reserved for severely disabled patients who have shown no improvement with other treatments
C) psychosurgery has been shown to work no better than placebo
D) none of the above