What Statement Best Describes a Variable and Its Primary Purpose

question 21

Multiple Choice

What statement best describes a variable and its primary purpose?

• A) A variable is a structured, general-purpose language designed primarily for teaching programming.
• B) A variable is a collection of eight bits.
• C) A variable is a word that has a special meaning to the compiler.
• D) A variable is a named storage location in the computer's memory used for holding a piece of information.
• E) A variable is a "line" of code in the body of a program, that may change.

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Definitions:

Producer Surplus

The excess amount that producers make from selling a product over their minimum acceptable price.

Autarky

An economic system characterized by self-sufficiency, where a region or country aims to produce all it needs without engaging in international trade.

Trade

The exchange of goods or services between parties, which can be within an economy or between economies, allowing for the specialization and efficiency gains.

Volume of Trade

The total quantity of shares or contracts traded for a specific security or market during a specified period.