One of the main symptoms of an emotionally disturbed child is that he or she shows:

(a) An inability to build satisfactory interpersonal relationships with peers and teachers
(b) An inability to communicate with adults
(c) An inability to walk and physically balance himself
(d) None
✅ Correct option: (a) An inability to build satisfactory interpersonal relationships
Explanation: Difficulty in relationships is a core characteristic of emotional disturbance.