Answer:
. All countries can gain from trade if they all specialize in production according to comparative advantage
Step-by-step explanation:
Comparative advantage is when a country produces a product at a lower opportunity cost when compared with its trading partners.
Absolute advantage is when a country produces more quantities of goods and services than its trading partners.
A country can still have comparative advantage in production if opportunity cost is increasing once it's opportunity cost doesn't become greater than that of its trading partners.
A country can have comparative advantage without having absolute advantage.
I hope my answer helps you.