If Selecting Samples of Si $\mathrm { n } > 30$

Multiple Choice

If selecting samples of si $\mathrm { n } > 30$ from a population with a known mean and standard deviation,what requirement, if any, must be satisfied in order to assume that the distribution of the sample means is a normal distribution?

A) None; the distribution of sample means will be approximately normal.
B) The population must have a normal distribution.
C) The population must have a standard deviation of 0.
D) The mean must be equal to the standard deviation.