When measuring wellness, you must consider a. all components of health b. your physical fitness being in the top 10% of the population c. being free of diseases d. both physical and mental health

The correct answer should be A

Immunization is the introduction of a foreign substance to provoke  the immune response system.  immunizations are the same as vaccinations. it introduces foreign (but dead/ weakened) illnesses to train the body to fight against them. specific viruses and bacteria have specific antigens, antigens act sort of like name tags. these name tags the immune system recognize what's dangerous to the body and what's safe.