Which of the following is the best definition of hypertension? A. a systolic pressure of more than 140 mmHg and a diastolic pressure of more than 90 mmHg B. a diastolic pressure of more than 140 mmHg and a systolic pressure of more than 90 mmHg C. a blood pressure of more than 140/90 mmHg measured after 5 minutes of inactivity D. a blood pressure of less than 110/70 mmHg measured after 5 minutes of inactivity
Option C. Hypertension is a blood pressure of more than 140/90 mmHg measured after 5 minutes of inactivity.