Which of the Following Statements About Nominal Data Is TRUE

Which of the following statements about nominal data is TRUE?

A) Possible operations with nominal scales are few, but due to the fact that the properties of "greater than" or "less than" apply, the addition of numbers is permissible.
B) The median is an appropriate measure of central tendency with nominal data.
C) A nominal scale is associated with the concept of identification and categorization.
D) Computing the mean is an acceptable statistical operation when one is dealing with nominal data.
E) All of the above are all false.