This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
[{'content': 'Spectrum of IDD does NOT include - \nSelect and explain. \nA. Still bihs, B. Hyperactivity, C. Deafness, D. Delayed development', 'role': 'user'}, {'content': "Answer: B \nExplanation: The spectrum of iodine deficiency include goitre, hypothyroidism, strabismus, spasticity, endemic cretinsm,deafness, intrauterine death. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 624", 'role': 'assistant'}]