Question no 990 : Account Determination Setup

In SAP MM Account Determination, which of the following statements are TRUE ?

(more then one answers)

A)     Valuation Grouping Code can be activated or de-activated.
B)      Valuation Level can be activated or de-activated.
C)      Multiple material type can be assigned to one Account Category Reference.
D)      Multiple Account Category Reference can be assigned to one Valuation Class.
E)      New Value Strings can be customized.