Which of the following statements about Normal probability distributions is correct?

I. All Normal probability distributions have the same mean and the same standard deviation.

II. All Normal probability distributions are symmetric.

III. All Normal probability distributions have a mean of 0.

IV. The Standard Normal probability distribution is a Normal probability distribution with mean 0 and standard deviation 1.

A. I, II and III

B. II only

C. II and IV

D. I, II, III, IV