This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
Takayasu aeritis mainly affects? 
Select and explain. 
A. dorsalis pedis, B. Celiac aery, C. Subclavain aery, D. SMA
C: Subclavain aery
Answer: C: Subclavain aery 
Explanation: takayasu aeriis mainly affects aoa and its main branches and also pulmonary aery Takayasu aeritis of subclan aery in a Caucasian.Takayasu aeritis, an inflammatory and obliterative disease of medium and large aeries, is classified as a giant cell aeritis. It has a predilection for the aoic arch, its main branches, and coronary and pulmonary aeries Ref Davidson 23rd edition pg 456