The correct options are
A Inability to move our body parts indicates a musculoskeletal disorder.
C First step to identify a disease is by comparing the symptoms of a patient with the signs of a disease.
∙ Each organ system in our body performs a particular set of functions. It enables us to work properly, keeping us physically and mentally fit.
∙ Any kind of mental or physical inability felt by our body is termed as a symptom. Symptoms suggest the presence of a disease.
∙ A symptom such as a headache does not clearly indicate the presence of a particular disease. E.g., it could be due to exam stress, periods, or meningitis.
∙ A particular disease has a particular combination of symptoms associated with it. The first step of identifying a particular disease could be by comparing the symptoms exhibited by our body to the signs of disease.