If a Nurse Is Using the Natural History of a Disease

If a nurse is using the natural history of a disease to help develop a primary prevention program for a specific disease, he or she would begin with:

A) Making sure that everyone in a certain area receives treatment.
B) Studying the continuum of the disease with a focus on the disease free state.
C) Looking at screening tools for identifying person who may have the disease.
D) Going to the autopsies of the patients who have died.