For the following data set, calculate the percentage of data points that fall within one standard deviation of the mean and compare the result to the expected percentage of a normal distribution. {8, 12, 27, 32, 45, 57, 61, 73, 82, 94}

A.
40%; This percentage is lower than expected in a normal distribution.

B.
50%; This percentage is lower than expected in a normal distribution.

C.
60%; This percentage is lower than expected in a normal distribution.

D.
70%; This percentage is close to the expected percentage in a normal distribution.