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What is the normal range of systolic and diastolic blood pressure in the body of human beings?

A) Systolic pressure is about 100 mm of Hg and diastolic pressure is 40 mm of Hg.

B) Systolic pressure is about 180 mm of Hg and diastolic pressure is 100 mm of Hg.

C) Systolic pressure is about 90 mm of Hg and diastolic pressure is 80 mm of Hg.

D)  Systolic pressure is about 120 mm of Hg and diastolic pressure is 80 mm of Hg.

E)  None of these