Which of the following are examples of time-independent key figures? Note: There are 2 correct answers to this question.

Which of the following are examples of time-independent key figures? Note: There are 2 correct answers to this question.
A . A special key figure marked as an aggregate key figure (aggregate constraint)
B. A currency conversion key figure, such as exchange rate
C. A unit of measure key figure, such as UOMCONVERSIONFACTOR
D. A forecast metric key figure, such FCSTMAPE

Answer: A,C