What are the maintenance levels of a screen layout rule for asset classes? Please choose the correct answer.

What are the maintenance levels of a screen layout rule for asset classes? Please choose the correct answer.
A . Asset class, main asset number, sub number
B . Main asset number, sub number, depreciation area
C . Asset class, depreciation area, main asset number, group asset
D . Depreciation area, asset class, main asset number, sub number

Answer: A