A Community/public Health Nurse Working in the Late 1960s Saw

A community/public health nurse working in the late 1960s saw an increase in the number of psychiatric patients who were being cared for in the community.What was the reason for this increase?

A) Phenothiazine drugs such as chlorpromazine had been discovered.
B) Lobbyists had demanded closure of state psychiatric hospitals.
C) State funding encouraged the establishment of community mental health centers.
D) Community-based therapy was found to be effective at controlling psychiatric symptoms.