Answer: All of these are correct
Step-by-step explanation:
South Korea
Opportunity cost of Computer chips = 50/100 = 0.2 bed linens
Opportunity cost of bed linens = 100/50 = 2 computer chips
USA
Opportunity cost of Computer chips = 100/150 = 0.67 bed linens
Opportunity cost of bed linens = 150/100 = 1.5 computer chips
Country with Comparative advantage in the production of a good is one that incurs the lower opportunity cost.
Country with Absolute advantage is county that produces the most quantity of a good or service.
Therefore;
US has Absolute advantage in both Computer chips and Bed linens.
South Korea has comparative advantage in Computer chips.
US has comparative advantage in bed linen manufacturing.