Based on the information provided, the correct response is:
The United States has an absolute advantage in laptop production.
Absolute advantage refers to the ability of a country to produce more of a good or service than another country, given the same amount of resources. Since it is stated that the U.S. would produce a greater quantity of laptops than Japan when both allocate all their resources to laptop production, the U.S. holds an absolute advantage in this scenario.
Comparative advantage, on the other hand, involves considering opportunity costs, which is not determined by just knowing the quantity produced. Thus, we cannot determine which country has a comparative advantage based solely on the information given.