We would need more information, are you sure this is all there is?
With the information that is given I believe that the answer is:
C. Constantly changing pieces of literature.
Answer: False
Explanation:
David Ricardo formulated the law of comparative advantage which was published in 1833. The holds that under free trade, an agent will produce more of and consume less of a good for which they have a comparative advantage.
According to David Ricardo, no country has absolute advantage when it comes to trade and he suggested that countries should focus more on producing goods they have comparative advantage in and import those with higher opportunity cost.
Im not sure best guess is B
So, you may understand what is being read or said aloud.
Your answer would Be C, as all the others are just stating facts. Hope this helps!
