Not sure if it is B or E, please advise?

For this question, please refer to the following information:Thyroid-stimulating hormone (TSH) is a hormone produced by the pituitary gland in your brain. This gland tells the thyroid to produce thyroxine (T4) and then triiodothyronine (T3) which stimulates the metabolism of almost every tissue in the human body. Using a simple blood draw, information on how the thyroid is functioning can be elucidated.

TSH level:

<0.4 mU/L = Hyperthyroidism

0.4 -4.0 mU/L = Normal

4.1 -8.0 mU/L = Hypothyroidism

>9.0 mU/L = Extreme hypothyroidism

According to the American Thyroid Association, plasma TSH levels are normally distributed with a mean

value of 3.0 mU/L and a standard deviation of 0.5 mU/L.

The American Thyroid Association is considering to establish new criteria for hyperthyroidism which will constitute the bottom 2%. What is the cutoff TSH level for the proposed hyperthyroidism level?(3 points)

Select one:

a. 1.64

b. 1.98

c. 2.05

d. 3.25

e. 4.03