Which of the following is a top down approach in which the entity 39 s higher level can be divided i...........

Computer GK DBMS

Which of the following is a top-down approach in which the entity's higher level can be divided into two lower sub-entities?

Aggregation

Generalization

Specialization

All of the above

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Explanation:

Answer: C
In specialization, the top-down approach is used, and it is apposite to the generalization.
In the specialization, the higher-level entity can be divided into sub lower entities. It is generally used for identifying the subset of an entity set which share the distinguishing characteristics.
To understand it more clearly, consider the following example:
Suppose you have an entity, e.g., A vehicle. So through the specialization, you can be divided further into sub-entities like two-wheelers and four-wheelers. Therefore the correct answer is C.