Which of the events below does not occur when semilunar valves are open?

When the semilunar valves are open, blood flows from the ventricles to the arteries. The below events do occur when semilunar valves are open:

- Blood pressure is high in the arteries

- Blood pressure is low in the auricles

- The heart is in diastole

Therefore, the correct answer is: None of the above