Which of the Following Explains Why Commodity Prices Have Fallen

question 7

Multiple Choice

Which of the following explains why commodity prices have fallen since 1850?

• A) The demand for productive resources has fallen faster than the supply of those resources.
• B) The demand for productive resources has grown faster than the supply of those resources.
• C) The supply of productive resources has increased, while the demand has fallen.
• D) The supply of productive resources has grown faster than the demand for those resources.

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Definitions:

Quantifier Negation

The logical operation of negating or reversing the scope of a quantifier in a statement, changing its encompassing range over the subjects it addresses.

Existential Generalization

A form of inference where from a specific case one concludes the existence of an instance satisfying a particular condition.

Existential Instantiation

A logical principle stating that if something is said to exist, then a specific instance of that thing must also exist.

Universal Generalization

A logical operation that infers a general statement from specific cases, asserting that a property or relation holds for all members of a certain category.