Why is it discouraged to use terms such as 'schizophrenic', 'autistic', and 'retarded' when referring to people with mental illness?
Correct Answer: D
Rationale: It is discouraged to use terms like 'schizophrenic', 'autistic', and 'retarded' when referring to people with mental illness because people with mental illness should not be defined solely by their condition. Using such labels can reduce individuals to just their diagnosis, overlooking their individuality and other aspects of their identity. It is essential to treat individuals with mental illness with respect and dignity, focusing on their humanity rather than reducing them to a label. Choices A, B, and C are incorrect because the main reason for discouraging these terms lies in not defining individuals by their conditions, rather than the terms being in or out of the DSM, the number of diagnosed individuals, or the perception of whether there is anything wrong with using such terms.