In a day of production, firms in Angola can produce 200 liters of oil or 100 kilograms of tungsten. Firms in Namibia can produce 160 liters of oil or 60 kilograms of tungsten. Which country has:

comparative advantage in tungsten
absolute advantage in oil
comparative advantage in oil

and what is the maximum price the country with the comparative advantage in tungsten is willing to pay for a liter of oil in terms of tungsten and what is the minimum price the country with the comparative advantage in tungsten is willing to pay for a liter of oil in terms of tungsten.