A baby will receive antibodies from the mother before birth through the umbilical cord and then through the breast milk after birth, what classes of antibodies are received, respectively?
a. IgG and IgA
b. IgM and IgD
c. IgG and IgM
d. IgM and IgA
e. IgE and IgG
Answer: a. IgG and IgA
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