By which year, in response to Dorothea Dix's efforts, had twenty-eight of 33 states built public institutions for the mentally ill?

A) 1851
B) 1855
C) 1860
D) 1840

Dorothea Dix

An American activist who, in the 19th century, led efforts to change the treatment of the mentally ill and to reform prisons in the U.S.

Public Institutions

Organizations or establishments funded and operated by the government, serving the public interest.

Mentally Ill

Refers to individuals suffering from mental health disorders that affect their mood, thinking, and behavior.