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
All are true about Giant cell arteritis except - 
Select and explain. 
A. Involves large to small sized arteries, B. Granulomatous inflammation, C. Most commonly involved artery is abdominal aorta, D. Segmental nature of the involvement
C: Most commonly involved artery is abdominal aorta
Answer: C: Most commonly involved artery is abdominal aorta 
Explanation: It is the most common form of systemic vasculitis in adults, is an acute and chronic, often granulomatous, inflammation of arteries of large to small size.
It affects principally the arteries in the head-especially the temporal arteries — but also the vertebral and ophthalmic arteries and the aorta, where it may cause thoracic aortic aneurysm