An Example of Natural Active Immunity Would Be

Multiple Choice

An example of natural active immunity would be

A) chickenpox infection followed by lifelong immunity.
B) chickenpox vaccine which triggers extended immunity to chickenpox.
C) giving a person immune serum globulins to chickenpox virus after exposure to the disease.
D) a fetus acquiring maternal IgG to the chickenpox virus across the placenta.
E) None of the choices is correct.