Assertion : Artificially acquired passive immunity results when antibodies or lymphocytes produced outside the host are introduced into a host.
Reason : A bone marrow transplant given to a patient with genetic immunodeficiency is an example of artificially acquired active immunity.

Assertion : Active immunity is acquired through the use of a person's immune responses, which lead to the development of memory cells. Reason : Active immunity results from an infection or an immunization.

Select the correct statements a) Passive immunity is slow & takes time to give full effective response. b) In active immunity readymade antibodies are directly given to protect body againts active infections. c) Passive artificial immunity is used for treatment of disease. d) Active artificial immunity is basis of vaccination.