Answer:D)Patent license.
A patent license is a legal protection that provides a person or legal entity with exclusive rights to making,using a selling an invented concept or product. The right exclude others from doing the same kind of concept.it is a grant of protection for invention.
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the presiding judge in a supreme court.
The presiding member of a nation's Supreme Court system. In some nations, a Chief Justice gains his or her position through seniority, while in other nations (including the United States) it is a position to which an individual must be nominated and appointed.
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A. presidential democracy
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In United States politics and government, the term presidential nominee has two different meanings: ... A person nominated by a sitting U.S. president to an executive or judicial post, subject to the advice and consent of the Senate.