Answer: A
P35.3 is the correct code for this case because the baby has congenital viral hepatitis and this code specifies this disease.
Option B is not correct because P35.2 is used to specify congenital herpesviral [herpes simplex] infection which is not the diagnosis here.
Option C is not correct because P35.4 is used to specify congenital Zika virus disease which is not the diagnosis here.
Option D is not correct because P35.0 is used to specify congenital rubella syndrome which is not the diagnosis here.