Whenever the Sampled Population Has a Normal Distribution,the Sampling Distribution $\bar { x }$

Multiple Choice

Whenever the sampled population has a normal distribution,the sampling distribution of $\bar { x }$ Is normal:

A) for only large sample sizes.
B) for only small sample sizes.
C) for any sample size.
D) for only samples of exactly 30.
E) for only samples of sizes greater than 31.