Given the question: You are presented with the question "Active immunity results when an immune response to a pathogen produces the basis of what?" and the following answer choices: - immunological memory - failed memories - resistance - broken memory - major threat to health - resistance activities - Leptospirosis - sad memories Now knowing that active immunity results when an immune response to a pathogen produces memory cells and memory cells are the basis of immunological memory, choose the best answer.
The answer is:
immunological memory