The answer is A. Quit smoking.
Smoking affects the lungs terribly which can greatly affect your heart since they are both part of the cardiovascular system.
EDIT: To further explain, smoking affects your respiratory system (lungs, bronchioles, etc.) however the cardiovascular system depends on the respiratory system. Overall they both keep blood flowing through the arteries of the body. Smoking damages the lining of your arteries, leading to a build up of fatty material which narrows the artery.
I believe it would be focusing policy changes that will effect the community’s health based on demand for certain types of care.
I'd say trustworthiness, your friend is trusting you with keeping a secret that he or she will only share with you. I hope this helps :)
Answer:
The immune system is made up of special organs, cells and chemicals that fight infection (microbes). The main parts of the immune system are: white blood cells, antibodies, the complement system, the lymphatic system, the spleen, the thymus, and the bone marrow.
Explanation:
pls make me as brainiest