Which of the Following Statements Is True About a Random

Which of the following statements is true about a random sample?

A) The mean of the sample will be the best guess of the mean of the population, no matter how large the sample is.
B) The mean of the sample will be the best guess of the mean of the population but only in very large samples.
C) The mean of the sample will provide the best guess of the mean of the population, but only if the sample is normally distributed.
D) The mean of the sample will provide the best guess of the mean of the population, but only if there are outliers in the sample.