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
Amyloid material can be best diagnosed by: 
Select and explain. 
A. Polarized microscopy, B. Electron microscopy, C. X-ray crystallography, D. Scanning electron microscopy
A: Polarized microscopy
Answer: A: Polarized microscopy 
Explanation: None