You want to designate a material as a material to be discontinued.How can you realize this in the system？ Please choose the correct answer.（)

A.Delete all existing info records for this material

B.Maintain a material status in the material master data which generates an error message, when you try to purchase the material

C.Maintain a material status in the material master data which generates an error message, when you try to save a goods receipt

D.Delete the material master record