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: Pediatrics
Which of the following is not a common manifestation of congenital Rubella - 
Select and explain. 
A. Deafness, B. PDA, C. Aoic stenosis, D. Mental retardation
C: Aoic stenosis
Answer: C: Aoic stenosis 
Explanation: Ans. is 'c' i.e., Aoic Stenosis o Nerve deafness is the single most common clinical finding among infant with congenital Rubella syndrome. o PDA is the most common CHD in congenital rubella syndrome. o Classical triad of congenital rubella consists of -3 Cataract, Deafness, CHD o Mental retardation is also common.