Water has the ability to dissolve salts and carry dissolved carbon dioxide. how does this action the human body maintain homeostasis?

Homoeostasis is a system of maintaining balance. This is important because too much salt and the body can develop problems like high blood pressure, and edema. This increases the risk of a heart attack, strokes, dementia, and kidney disease. Then the dissolved carbon is unnecessary to the body.
 

The answer would be b. it is a learned trait