I think it’s b bc a and c both say count ur heart beat for one minute
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.
Answer:
cool
Explanation:
why are you asking this on a home work website?
Step one: define an attainable clear goal
Step two: outline the steps to achieve your goal
Step 3: set a deadline to achieve your goal
Step 4: monitor your activity’s by journaling