Which of the following is true about a 95% confidence interval of the mean of a given sample:
a. 95 out of 100 sample means will fall within the limits of the confidence interval.
b. There is a 95% chance that the population means will fall within the limits of the confidence interval.
c. 95 out of 100 population means will fall within the limits of the confidence interval.
d. There is a 0.05 probability that the population mean falls within the limits of the confidence interval.