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: Medicine
21 Year old female presented with aortic arch aneurysm she underwent resection and the specimen was sent to histopathological examination. It showed all three layers were involved and giant cells were present. What is the probable diagnosis - 
Select and explain. 
A. Tubercular aortitis, B. Wegeners granulomatosis, C. Giant cell arteritis, D. Nonspecific aortoarteritis
D: Nonspecific aortoarteritis
Answer: D: Nonspecific aortoarteritis 
Explanation: None