In the product market A. productive resources are bought and sold.
B. Producers sell goods and services to consumers
C. A nations total output of goods and Services increases
D. the amount of output produced by a given amount of inputs is measured

I believe it's a

Explanation:

I think it's a because product market is the marketplace where final goods or services are sold to businesses and the public sector.

earlier philosophers whose work influenced the enlightenment included bacon, descartes, locke, and spinoza. the major figures of the enlightenment included beccaria, diderot, hume, kant, montesquieu, rousseau, adam smith, and voltaire. it spread the ideas of the enlightenment across europe and beyond.

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .