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Q:

 When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?

A) Disjoint with total specialization B) Disjoint with partial specialization
C) Overlap with total specialization D) Overlap with partial specialization
 
Answer & Explanation Answer: C) Overlap with total specialization

Explanation:
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