Which of the Following Is Not True About Subtype Entities

question 62

Multiple Choice

Which of the following is not true about subtype entities?

• A)Subtypes may be exclusive.
• B)The supertype and subtypes will have the same identifier.
• C)Subtypes are used to avoid a situation in which some attributes are required to be null.
• D)All subtypes of a supertype must have the same attributes.

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Definitions:

Edgefield

A county in South Carolina known historically for its pottery industry and as a site of significant racial tension and violence during the Reconstruction era.

Pottery

The craft or profession of making objects from clay.

Creativity

The use of imagination or original ideas to create something; inventiveness visible in art, science, and problem-solving.

Overseers

Individuals appointed to supervise and direct the work of slaves, particularly on plantations in the Americas, often enforcing discipline with harsh measures.