It enters the heart via the pulmonary veins
Well, if it's possible to pick more than one, I would say "she should take the appropriate steps if she wishes to avoid pregnancy" and "she should take precautions to ensure that she does not contract and STI"
Some health issues that i have seen for seniors is lung caner becasue of smoking. There is really no way of stoping it. Evening if telling them what is really going to happen. they act like it is not a big deal. But it really is. They are putting their life in danger. We got to figure out how to stop it.\
Some seniors face the flu and it is flu season. One way to addres this is to not let them go out defentily if they have a weak ammiune system they could get hurt.
I think it would be A. Cardio means to get your heart rate pumping so aerobic training is the best choice. Hope this helps.