Answer:
The correct answers are letters "A", "B", and "C".
Step-by-step explanation:
Comparative advantage is the advantage an individual, company or country has that allows them to produce at lower opportunity cost compared to rivals. It does not necessarily mean that they have an absolute advantage. Due to lower opportunity costs, a company can offer its products at lower prices generating more revenue.
In the case, as Hobbes is faster at making chains, Hobbes has a comparative advantage on chains over Calvin. Though, as Hobbes is slower in making decals, Hobbes has higher opportunity costs than Calvin on decals. In such a way, Calvin has a comparative advantage in making decals.
Therefore, the chains and decals output would be maximized if Calvin makes decals only and Hobbes makes chains only.