Final answer:
According to the theory of comparative advantage, Russia will produce steel.
Step-by-step explanation:
According to the theory of comparative advantage, countries will trade with each other based on their comparative advantage. Comparative advantage refers to the ability of a country to produce a good or service at a lower opportunity cost than another country.
In this case, Russia's opportunity cost of producing 1 ton of steel is 5 automobiles, while India's opportunity cost is 3 automobiles. Therefore, Russia has a comparative advantage in steel production and should focus on producing steel.