The person who introduced vaccination into Europe was a. Robert Koch. b. Louis Pasteur. c. Edward Jenner. d. Mary Montagu.

C). Edward Jenner

Explanation:

Vaccination is the approach that involves the activation of the adaptive immune response of humans. The provided vaccine contains the killed or weekend micro-organism which is given to the patient which activates the immune system of the patient.

The activated immune response provides protection against the related pathogen which was observed by the English practitioner Edward Jenner when he observed that the person infected with the cowpox was not infected with smallpox. He called this process as vaccination.

Thus, Edward Jenner is the correct answer.