The probability of an outcome that lies within 99.7% of the mean is a good indicator that it lies in which standard deviation?

A.There is a probability that the outcome is within 1 standard deviation of the mean.

B.There is a probability that the outcome is within 3 standard deviations of the mean.

C.Standard deviations are not reliable, so the probability cannot be determined.

D.There is a probability that the outcome is within 2 standard deviations of the mean.