A subtype discriminator is which of the following? – McqOptions

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1.	A subtype discriminator is which of the following?
A.	An attribute of the supertype whose values determine the subtype
B.	An attribute of the subtype whose values determine the supertype
C.	An attribute of the supertype whose values determine the supertype
D.	An attribute of the subtype whose values determine the subtype
Answer» B. An attribute of the subtype whose values determine the supertype

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