Answer:
The correct answers that fills the gaps are: cooking eggs; making sandwiches
Explanation:
The comparative advantage is the ability of a person, company or country to produce a good using relatively less resources than another.
The concept of comparative advantage is one of the basic foundations of international trade. It assumes as decisive the relative costs of production and not the absolute ones. In other words, countries produce goods that have a lower relative cost compared to the rest of the world.
In the situation presented, both people complement each other as they cook one of the two meals in less time than the other.
