Foetus receives some antibodies from mother, it is an example for passive immunity
When exposed to antigen (living or dead) antibodies are produced in the host's body. It is called "Active immunity
When ready-made antibodies are directly given, it is called "Passive immunity"
Hide Solution
Verified By Collegedunia
The Correct Option isA
Solution and Explanation
Explanation: When a host is exposed to antigens, which may be in the form of living or dead microbes or other proteins, antibodies are produced in the host body. This type of immunity is called active immunity.Active immunity is slow and takes time to give its full effective response.Hence, the correct option is (A).