Systolic pressure is a measure of blood pressure when the ventricles relax and fill with blood. true false

False. This is a definition of Diastolic pressure. Systolic is defined as the pressure wave that results from the ventricles contracting, sending blood out into the body. Remember that Systole normally should have a higher number number than Diastole; 120/80 (so you can see where that makes sense).

Iwould say a is correct