What is the management of newborns born to mothers positive for HBV? a. Vaccine and hepatitis B immune globulin (HBIG) within 12 hours of birth b. Monitoring and testing for hepatitis B surface antigen (HBsAg) at 1-2 months of age c. Follow-up appointments with a pediatrician for additional vaccinations d. Education for parents about preventing transmission of HBV to the infant