Question

when a countrys production mix becomes more specialized due to increased international trade based on comparative advantage:
○ some industries in the country will shrink and possibly disappear.
○ all industries in the country will grow as the economy grows from the trade.
○ the losses in industries without comparative advantage will offset the gains from trade.
○ the country will find it has less need for trade in the future.

Explanation:

• For the option "all industries in the country will grow...": When a country specializes based on comparative advantage, it focuses on producing goods it has a relative efficiency in. Industries without comparative advantage will not grow; some may shrink, so this is wrong.
• For "the losses...offset gains": The gains from trade (from specialized production) typically outweigh losses in non - comparative - advantage industries due to increased efficiency and access to larger markets, so this is incorrect.
• For "the country will find...less need for trade": Specialization from comparative - advantage - based trade usually increases trade dependence as the country produces fewer types of goods and needs to trade for others, so this is wrong.
• For "some industries...shrink and disappear": When a country specializes in production based on comparative advantage (from increased international trade), it will allocate more resources to industries with comparative advantage. Industries where the country does not have a comparative advantage will receive fewer resources, leading to their shrinkage or even disappearance as they can't compete with more efficient producers (domestic or foreign in the context of trade - driven specialization).
• The correct option is the first one: "some industries in the country will shrink and possibly disappear."

Answer:

A. some industries in the country will shrink and possibly disappear.