If the pressure in the ventricles is higher than the pressure in the atria, but lower than the pressure in the great arteries, which of the following is true?   a-semilunar valves will be closed, but the atrioventricular valves will be open, ventricles will be filling b-both the atrioventricular and semilunar valves will be closed and there will be no flow of blood c-both the atrioventricular and semilunar valves will be open and there will be flow through the ventricles d-the atrioventricular valves will be closed, but the semilunar valves will be open, ventricles will be ejecting blood

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