At one time, the cholesterol levels for women aged 20 to 34 follow an approximately normal distribution mean 185 milligrams per deciliter (mg/dl) and standard deviation 39 mg/dl. What proportion of women aged 20 to 24 have cholesterol levels above 175.
A. 0.5987
B. 0.6026
C. 0.9013
D. 0.76