Answer:
D. They refer to the heart and lungs
Explanation:
Cardio is a term used for the heart. When people talk about cardiovascular health they mean your heart and blood stream. Pulmonary talks about the lungs. This comes from the latin word Plumo which means lungs.
I'd say the best action to improve your health would be to frequently exercise, and eat healthy foods.
The answer is B have increased muscular endurance
