Answer: Economic means relating to economics or the economy.
Opportunity cost means: The loss of potential gain from other alternatives when one alternative is chose
Scarcity means: The state of being scarce or in short or in short supply; shortage
Demand: an insistent and peremptory request, made as if by right
Supply: make something needled Ir wantsd available to someone;provided
Explanation:
The first country to do so was Portugal
The correct answer to fill in the blank would be ''Asia''.
It was b. Farmers moved to cities to look for factory jobs, which were unsafe, with long hours