\textbf{At a certain restaurant, the distribution of wait times between ordering a meal and receiving the meal has mean 11.4 minutes and standard deviation 2.6 minutes. The restaurant manager wants to find the probability that the mean wait time will be greater than 12.0 minutes for a random sample of 84 customers. Assuming the wait times among customers are independent, which of the following describes the sampling distribution of the sample mean wait time for random samples of size 84 ?} 
选项为:A:\textbf{~Approximately normal with mean 11.4 minutes and standard deviation 2.6 minutes}  B:\textbf{~Approximately normal with mean 11.4 minutes and standard deviation $\frac{2.6}{\sqrt{84}}$ minute~}  C:\textbf{Approximately normal with mean 12.0 minutes and standard deviation 2.6 minutes}  D:\textbf{Binomial with mean 84(0.41) minutes and standard deviation 84(0.41)(0.59) minutes~}  E:\textbf{Binomial with mean 84(0.5) minutes and standard deviation 84(0.5)(0.5) minutes}  请回答其中一个选项.