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
Paessure difference of 5 mm Hg between the two up per limbs occurs in which congenital heart disease 
Select and explain. 
A. TOF, B. TGA, C. HOCM, D. Supra-valvular aortic stenosis
D: Supra-valvular aortic stenosis
Answer: D: Supra-valvular aortic stenosis 
Explanation: None