Final answer:
The idea that is most consistent with the law of comparative advantage is a) Specialization, which allows countries to focus on producing goods they are more efficient at and trading with others.
Step-by-step explanation:
The idea most consistent with the law of comparative advantage is a) Specialization.
Comparative advantage is a concept in economics that refers to a country's ability to produce a particular good or service at a lower opportunity cost than others. It is a key principle in international trade that suggests that countries will engage in trade benefits when they specialize in producing goods where they have a comparative advantage and then trade with others.
Specialization allows workers and countries to focus on the production of goods and services that they are relatively more efficient at producing. This leads to an increase in overall production and trade, which benefits all parties involved. In contrast, options b) Self-sufficiency, c) Isolationism, and d) Rugged individualism do not align with the concept of comparative advantage.