Which best describes Dorothea Dixs efforts on behalf of people with disabilities

She conceived of an promoted the rehabilitation act of 1973

She established camps for children with disabilities

She called attention to inhumane treatment of the mentally ill

She promoted the social security act of 1935

The answer is (C) "she called attention to inhumane treatment of the mentally ill".

Dorothea Dix disguised herself as a patient (when she was actually a reporter) so that she could witness, firsthand, the treatment of mentally ill patients at hospitals.

Then, when she got out, she wrote about the horrors she saw, calling for people to change the policies.