Blood pressure does increase in direct proportion with the intensity of the exercise. Systolic blood pressure increases from 120 mmHg before exercise and exceed 200 mmHg during exercise and still be considered normal. Diastolic blood pressure changes little (assume stay at 80 mmHg). With the new pressure difference, How many times of the new flow rate comparing to the original flow rate? A. 4
B. 2
C. 1
D. not be able to determine
E. 3