Exercises that improve cardiovascular fitness improve body composition, because t __________. A. increase body fat B. increase body tissue C. release energy D. store energy Please select the best answer from the choices provided. A B C D

Answer: C. release energyExplanation:Cardiovascular fitness refers to the ability of the heart and lungs to supply oxygen-rich blood to the working muscle tissues also the ability of the muscles to use oxygen to produce energy for movement.Aerobic excercises lead to the breakdown of glycogen to glucose.Oxygen is used to burn fats and glucose will be used to produce ATP (Adenosinetriphosphate) the basic carrier of energyCardiovascular exercises include walking, jogging, running among others.