Question: Paula is a 39-year-old who has just given birth vaginally to a 35-week premature baby boy, Henry. Paula is HIV-positive and received prenatal care starting late in her second trimester of pregnancy. The birth was uneventful and Henry is now a few hours old and currently being bottle-fed and bonding with mom. When caring for Henry, the nurse identifies which of the following as the functions of the primary line of defense against infection? Select all that apply. Synthesis of vitamin D IgM Immunoglobulins Temperature regulation Protection from deep tissue injury Antibodies