Which of the Following Is True of Interval Scales

Multiple Choice

Which of the following is true of interval scales?

A) There is a fixed zero point, where zero denotes the absence of the attribute being measured.
B) Arithmetic operations are limited to statistics such as the median or mode.
C) The numbers used to rank objects represent equal increments of the attribute being measured.
D) There is no necessary relationship between scale categories.
E) None of the above.