The positive relationship between price and quantity supplied, other things being equal, is considered to be: a. true only when consumers act irrationally.
b. never true in heavily regulated markets.
c. true only in market-based economies.
d. universally true for all markets.
e. sometimes true in all markets.

The answer is D.

Explanation:

The correct answer is D. universally true for all markets

Other things being equal, as the price of goods and services increase, producers/firms tend to produce more(this is the popular law od supply) inorder to take advantage of the high revenue.

Unlike demand, for supply, price and quantity supplied are directly related.

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