A client who is HIV-positive is in her second trimester and remains asymptomatic. She voices concern about her newborn's risk for the infection. Which statement by the nurse would be most appropriate?

C Wait until after the infant is born, and then something can be done.' D Antibodies cross the placenta and provide immunity to the newborn.' B Antiretroviral medications are available to help reduce the risk of transmission.' A You'll probably have a cesarean birth to prevent exposing your newborn.'