The Number of Entity Types That Participate in a Unary

question 57

Multiple Choice

The number of entity types that participate in a Unary relationship is:

• A) zero.
• B) one.
• C) two.
• D) three.

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Definitions:

Organic Causes

Refers to health problems or diseases that have a physical basis in the body, rather than being caused by mental or emotional factors.

Trephining

an ancient medical procedure that involves making a hole in the skull to treat health problems or release evil spirits.

Emotional Disturbance

A condition characterized by significant challenges in managing one's emotions, behavior, or learning abilities.

Prefrontal Lobotomy

A surgical procedure that was once used to treat mental disorders by severing connections in the brain's prefrontal cortex.