Choose your answer from:
(a). As long as antibodies survive.
(b). Slowing the transfer of heat.
(c). For a set time.
(d). by keeping them warm.
(e). it protects them.
(f). Into elderly years.
(g). As long as the human survives.
(h). A compound that donates proton.
Q: Fact 1: Passive immunity lasts only as long as the antibodies survive in body fluids. Fact 2: Antibodies are administered to the patient in a process called passive immunization. Given the two facts above, how long can antibodies protect the body?
A:
(a).