The "_____" Characteristic of a Primary Key States That the Primary

question 43

Multiple Choice

The "_____" characteristic of a primary key states that the primary key must uniquely identify each entity instance, must be able to guarantee unique values, and must not contain nulls.

• A) unique values
• B) nonintelligent
• C) preferably single-attribute
• D) security-complaint

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Definitions:

Consumer Surplus

The disparity in the consumers' desired payment amount for a good or service and the actual expense they bear.

Natural Monopoly

A market condition where a single firm can supply a product or service at a lower cost than any potential competitor, often due to economies of scale.

Large Fixed Costs

Expenses that do not change in total regardless of changes in the volume of goods or services produced.

ATC

Average Total Cost, which is calculated by dividing the total cost of production by the quantity of output produced.