I think the correct answer among the choices presented above is option A. If you are new to an activity, it is better to <span> work at a slower speed for more days a week. In this way, you will be acquainted with the work you have and as time pass by, you will be more skilled and faster.</span>
My answer is B Because when you train it’s a pressure and when the pressure get to your heart then your heart will raise.
The layer that encloses and protects the heart is
Pericardium
The correct answer is B. because it's true that Capillaries are connected between the arteries and veins and that Pulmonary arteries transport blood low in oxygen from the right ventricle to the lungs. But veins carry blood towards your heart so B isn't true
