This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous System, Subject name: Pathology
Neuro fibrillary tangles is seen in 
Select and explain. 
A. Parkinsonism, B. Alzheimer's disease, C. Multiple sclerosis, D. Perivenous encephalomyelitis
B: Alzheimer's disease
Answer: B: Alzheimer's disease 
Explanation: (Alzheimer's disease) (910-HM) (894-Basic pathology 8th)* Deposition of A b amyloid derived from amyloid precursor protein (APP) forming neuritic senile, plaques and neurofibrillary tangles - features of ALZHEIMER'S DISEASE* Lewy bodies - hall marks of Parkinsonism