John Maynard Keynes believed the ideas of economists to be a. powerful. b. generally incorrect. c. rantings of madmen. d. academic and without practical application.

this question does't support enough resioning to answer.

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.