This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
In Alzheimer's disease, plaque is made up of - 
Select and explain. 
A. Tau protein, B. Beta amyloid, C. Huntington, D. Alpha synnuclein
B: Beta amyloid
Answer: B: Beta amyloid 
Explanation: . Beta amyloid