Question no 1309 : Condition Validity Periods

In SAP MM Purchasing, which of the following allows validity periods for the Condition Records ?

(more then one answers)

A)      Central Contract Plant Conditions.
B)      Scheduling Agreement Pricing Conditions.
C)      Purchasing Info Record.
D)      Quotation Pricing Conditions.
E)      Blanket Purchase Order with validity period in the header.
.