An Attribute(s) That Acts as a Foreign Key in a Relation

question 12

Multiple Choice

An attribute(s) that acts as a foreign key in a relation ____.

• A) must be the entire primary key of that relation
• B) cannot be part of the primary key of that relation
• C) may be part of the primary key of that relation
• D) must also be a foreign key in another relation of the database
• E) None of the above.

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Definitions:

Diagram

A simplified drawing showing the appearance, structure, or workings of something, typically used for explanation purposes.

Space

The vast, seemingly infinite expanse that exists beyond Earth's atmosphere, consisting of other celestial bodies, stars, and galaxies.

Electrons

Electrons are subatomic particles with a negative electric charge, found in all atoms, and serve as the primary carrier of electricity in solids.

Chlorophyll

A green pigment found in the chloroplasts of plants and algae, essential for photosynthesis by absorbing light energy and converting it into chemical energy.