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, answer the question "How long can antibodies protect the body?" with the following options: 
- As long as antibodies survive
 - Slowing the transfer of heat
 - For a set time
 - by keeping them warm
 - it protects them
 - Into elderly years
 - As long as the human survives
 - A compound that donates proton


 

 As long as antibodies survive        