High Blood Pressure Increases the Risk of CHD by 2

High blood pressure increases the risk of CHD by 2 to 3-fold in men and women of all ages.Based upon new guidelines established by the American Heart Association, what are the current threshold levels of blood pressure for high CHD risk?

A) Systolic Blood Pressure of 140 mm Hg or higher
B) Diastolic Blood Pressure of 90 mm Hg or higher
C) Systolic Blood Pressure above 130 mm Hg and Diastolic Blood Pressure above 85 mm Hg
D) Only a and b are correct.