A Table Is in 4NF If It Is in 3NF

question 5

Multiple Choice

A table is in 4NF if it is in 3NF, and _____.

• A) all attributes must be dependent on the primary key and must be dependent on each other
• B) all attributes are unrelated
• C) it has no multivalued dependencies
• D) no column contains the same values

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Definitions:

Electroencephalography

A non-invasive procedure that records the electrical activity of the brain using electrodes placed on the scalp, commonly used to diagnose neurological conditions.

Computed Tomography

Computed Tomography, or CT, is a medical imaging technique that uses computer-processed combinations of multiple X-ray measurements taken from different angles to produce cross-sectional images of specific areas of a scanned object.

Spinocerebellar Degeneration

A progressive genetic or acquired condition in which the cerebellum, which coordinates muscle movements, gradually atrophies leading to issues with mobility and coordination.

Cerebellum

Located at the skull's posterior, this brain area is vital for the regulation of movement, coordination, precise execution, and the timing of motor activities.