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: Radiology
Angiographically, the typical "beaded" or "pile of plates" appearance involving the internal carotid aery is observed in: 
Select and explain. 
A. Takayu's disease, B. Non-specific aoo-aeritis, C. Fibromuscular dysplasia, D. Rendu-Osler-Weber Disease
C: Fibromuscular dysplasia
Answer: C: Fibromuscular dysplasia 
Explanation: Ans. Fibromuscular dysplasia