90.tPlease choose the correct description for confidence level.
(A)tConfidence level is the probability that the sample mean lies within a certain interval.
(B)tConfidence level is the probability that the true mean lies within a certain interval.
(C)tConfidence level is the range of values within which the population mean is expected to lie with a certain probability.
(D)tConfidence level is the range of values within which the true value is expected to lie with a certain probability,
(E)tNone of the above.