<prompt> Lack of ability of a pa to do normal function is called as ?ImpairmentDiseaseDisabilityHandicap  <response>: Ans. is c i.e., Disability According to WHO definitions, Disease: Any abnormal condition of an individual that impairs function Impairment: Any loss or abnormality of psychological, physiological or anatomical structure or function Disability: Because of impairment, any restriction or inability to perform an activity in a range considered normal for a human being 