A country has a comparative advantage in trade when it: A. can produce a good more efficiently than another country.

B. has a lower opportunity cost producing a good than another
country

C. is the only country that produces a particular good.

D. produces all the essential goods its citizens require.

Comparative advantage refers to the ability to produce goods and services at a lower opportunity cost, not necessarily at a greater volume or quality. Comparative advantage is a key insight that trade will still occur even if one country has an absolute advantage in all products.

Explanation:

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answer; (b) ; /stronger bonds between the nations of africa

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.