Answer:
Country A has a comparative advantage of producing planes
Explanation:
The conclusion that is backed most adequately would be "Country A has a comparative advantage of producing planes."
Given the data,
Country A can produce 100 ships per day in comparison to country B's 50.
Country B can produce 60 planes per day in comparison to country B's 20.
This shows that,
Country A possesses a significant lead over the latter in terms of producing planes using the available resources efficiently in comparison to Country B.
Thus, option A is the correct answer that offers a worthy and valid conclusion.
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