I believe the answer is B.
It pretty much means that the Major vein leading from the bottom of your body to the heart, is slightly dilated or wider. The aortic root is where the aorta meets up with the heart. Normally I'd say you're alright, though try to maintain a low salt diet to prevent hypertension.
Getting the nutrients you need isnt to hard. Having a well balanced diet, and taking vitamins will help you get the nutrients you need. <span />
PPE primary use is to protect the user. Thus, answer is B) to protect the first responder from diseases