31 The boundariesbetween the sane and the mentally ill havebecome the battlelinethatdivides two opposingschools of thought. (A) The limitations of healthy and mentally ill peopleresult in two types of thoughts. (B) The outlines of sane and insanepeopleresemblethose of the two schools of thoughts. (C) The definition of the sane in contrast to mentally ill people has become the center of debatebetween two schools of thought. (D) The boundariesbetweensane and mentally ill peoplehavebecome the maintopic to which the two schools of thought are opposed.