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
Most common organs involved in wegner's granulomatosis are 
Select and explain. 
A. Skin and nose, B. Lung and kidney, C. Heart and kidney, D. Kidney and navour system
B: Lung and kidney
Answer: B: Lung and kidney 
Explanation: Wegner gronulomatosis now known as, granulomatosis with polyangitis is a necrotizing vasculitis characterized by a tried of.

Necrotizing gronulomar of the upper respiratory tract (ear, nose, sinuses, throat) or the lower respiratory tract (lung) or both.
Necrotizing or granulomatous vasculitis affecting small to medium - sized vessels (eg: capillorics, venuler, arterioles and arterier). Most prominent in the lungs and upper airways but involving other sites as wells.
Focal necrotizing, often crescentic, glomerulonephritis Also know that "limited" forms of this disease may be restricted to the respirotory tract,