Answer :
The type of immunity acquired when antibodies are transferred from another person or animal is called passive immunity. It offers immediate, though temporary, protection without creating immunological memory. The correct option is B.
When the body acquires antibodies from another person or an animal that has developed its own immunity to the pathogen, this type of immunity is known as passive immunity. The correct option is B.
Unlike active immunity, where the body makes its own antibodies and memory B cells in response to exposure to an antigen, passive immunity is temporary, as it lasts only as long as the transferred antibodies or T cells are present in the blood.
This can span from a few days to a few months. Passive immunity can provide immediate protection but does not create immunological memory for future protection against the same pathogen.
There are both naturally and artificially acquired forms of passive immunity. An example of natural passive immunity is antibodies transferred from mother to child across the placenta or through breast milk. Artificial passive immunity can be achieved through the administration of antivenoms or antibody-containing medical treatments.