Price and demand move in the same direction for goods.
a.
substitute
b.
high-quality
c.
complementary
d.
government manufactured

The correct option is B

The law of supply and demand is a basic economic model postulated for the formation of market prices of goods within the neoclassical school and other related, being used to explain a variety of phenomena and processes both macro and microeconomic. In addition, it serves as a basis for other theories and economic models.

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on my last question