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
A neonate presented with cicatrising skin lesions all over body with hypoplasia of all limbs. MRI of brain revealed diffuse cerebral atrophy. which of these tests is most likely to show positive result in this patient? 
Select and explain. 
A. Anti rubella antibody, B. Anti toxoplasma antibody, C. Anti VZV antibody, D. Anti CMV antibody
C: Anti VZV antibody
Answer: C: Anti VZV antibody 
Explanation: Cicatrising skin lesions, Hypoplasia of all limbs are features of congenitanl varicella syndrome.Therefore Anti VZV antibody will be positive in this baby.