Normal Blood Pressure for Adults Age 18 or Older Is

Normal blood pressure for adults age 18 or older is:

A) systolic pressure less than 140 mm Hg and diastolic pressure less than 90 mm Hg.
B) systolic pressure less than 120 mm Hg and diastolic pressure less than 80 mm Hg.
C) systolic pressure less than 100 mm Hg regardless of diastolic pressure.
D) systolic pressure greater than 90 mm Hg and diastolic pressure greater than 60 mm Hg.