What is a healthy blood pressure?
a. Systolic below 120 mmHg and diastolic below 80 mmHg
b. Systolic below 130 mmHg and diastolic below 90 mmHg
c. Systolic below 140 mmHg and diastolic below 90 mmHg
d. Systolic below 150 mmHg and diastolic below 100 mmHg