The semantic constraint specifying that no instance can be an instance of more than one subclass at the same time is:
A) complete.
B) disjoint.
C) overlapping.
D) incomplete.
E) aggregation.
B
Explanation: B) Disjoint means that no instance can be an instance of more than one subclass at the same time, whereas overlapping allows concurrent participation in multiple subclasses.
CL
Business
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