Glucose is normally distributed with a mean of 54 mg/dl and standard deviation of 50 mg/dl. According to the National Institute of Diabetes and Digestive and Kidney Disorder, the normal A1c Hemoglobin level for a non-diabetic person is 5.6 or below. What is the probability that a randomly selected person has a normal level less than 5.6?

a. 1.6%

b. 97%

c. 16.60%

d. 9.7%

e. 8.4%