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
Pressure difference of 5 mmHg between the two upper limbs occurs in which congenital hea disease? 
Select and explain. 
A. TOF, B. TGA, C. HOCK, D. Supra-valvular aoic stenosis
D: Supra-valvular aoic stenosis
Answer: D: Supra-valvular aoic stenosis 
Explanation: Answer- D. Supra-valvular aoic stenosisBlood pressure difference of 5 mm of Hg between two upper limbs can occur in congenital hea disease- Supra-valvular aoic stenosis