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For converting a specialization / generalization with 1 super class and 2 subclasses into GRD , if the constraints are { optional , and }
For converting a specializationgeneralization with super class and subclasses into GRD if the constraints are optionaland then the number of relations in the corresponding GRD is A B C D
For converting a specializationgeneralization with super class and subclasses into GRD if the constraints are optionaland then the number of relations in the corresponding GRD is
A
B
C
D
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