This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Psychiatry, Subject name: Medicine
Reversible Dementia Is a feature of ? 
Select and explain. 
A. Hyperparathyroidism, B. Hypothyroidism, C. Hyperthyroidism, D. Cushing's disease
B: Hypothyroidism
Answer: B: Hypothyroidism 
Explanation: Ans. is 'b' i.e., Hypothyroidism Causes of reversible dementiao Hypothyroidismo Normal pressure hydrocephaluso Depressiono Drugso Alcoholo Vitamin B12 deficiency