Which of the following statements is true?

A)In statistics, we use the true mean of a population to estimate the mean of a random sample.
B)In statistics, we use the mean from a random sample of a population to estimate the true mean of the population.
C)In statistics, the value of the mean from a random sample is the same as the true mean of the population.
D)In statistics, the value of the mean form a random sample is unrelated to the true mean of the population.