Answer:
B. exercise tubing
Explanation:
It is the most portable & reliable source of a full body workout equipment.
Physical fitness is the ability of an individual to perform day to day activities without fatigue. It involves several aspects, including cardiovascular ability, muscular strength, and flexibility. Proper diet and sleep can help someone attain physical fitness, and physical fitness improves overall physical health.
Obtaining a graduate degree
Cardiovascular system has to do with the heart, so anything to reduce the risk of that system (including the heart, bloodstream etc.) would be the answer for you. So just using Process of elimination:
A) Has to do with external exposure. <em>No</em><em />
B) Keeping hands clean <em>No</em><em />
C) Avoiding cigarette smoke <em>Yes</em>
D) Keeping your vaccinations up to date <em>No</em><em />
So your answer is C.