Which Statement Best Describes How the Perspective on Psychopharmacological Use

Which statement best describes how the perspective on psychopharmacological use of phenothiazines has historically changed?

A) Phenothiazines were originally used as a preoperative medication and found to improve the client's anxiety.
B) Phenothiazines were originally used for infection control and found to improve a client's treatment compliance.
C) Phenothiazines were originally used for postoperative care and found to improve the client's ability to recover from anesthesia.
D) Phenothiazines were originally used for diabetics to control their appetite and blood sugars.