Which of the Following Is the Correct Technique for Representing

question 55

Multiple Choice

Which of the following is the correct technique for representing a M:N relationship using the relational model?

• A) An intersection relation is created, and the key of either entity is placed as a key in both the intersection relation and in the other relation.
• B) An intersection relation is created with a surrogate key, which is placed in each of the parent entities.
• C) An intersection relation is created, and the keys of both parent entities are placed as a composite key in the intersection relation.
• D) The key from either relation is placed as a foreign key in the other relation.
• E) None of the above

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Definitions:

Human History

The recorded or studied past of the human species, encompassing historical events, cultures, advancements, and transformations through time.

Neandertals

An extinct species of human that was widely distributed in ice-age Europe between c. 120,000-35,000 years ago, coexisting with early Homo sapiens.

Gracile Australopithecines

One member of the genus Australopithecus possessing a more lightly built chewing apparatus; likely had a diet that included more meat than that of the robust australopithecines.

Human Ancestors

Prehistoric species and genera that are considered predecessors of modern humans in the evolutionary lineage.