Adam smith’s ideas that are present in the day-to-day workings of the us economy include all of the following except:
a.
invisible hand
b.
specialization
c.
trade regulation
d.
economic freedom

C. Trade regulation

Explanation:

Adam Smith who is also known as the Father of Modern Economics, published a Book titled "Wealth of nation" in which he famously talks about the free trade and No government Regulation on Entrepreneurs, Although Trade regulation is the regulation which is set by the federal and state government on Trade.

the answer is states.

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.