Organ viability is determined when a person is declared brain dead, so B.
A composite primary key<span> is a set of several primary </span>keys<span> that, together, uniquely identifies each record.</span>
Primary keys are used as identifiers of composite entities. In this case each primary key combination is allowed only once in the *:* relationship.
Other case where primary keys are used is as identifiers of weak entities, where the weak entity has a strong identifying relationship with the parent entity.
Answer:
True they do. mark brainliest.!!!!! please
Explanation:
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You can ping a website to test your latency.
ping google.com
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