There are two countries called Country D and Country B. They each have 4 million labor hours available per week that they can use to produce reins and jeans or a combination of both. The table below shows the amount of reins and jeans that each company can produce using 1 million hours of labor. Country D can produce 14 million rings and 28 million jeans. Country D can produce 12 million rings and 6 million jeans. Which country has a comparative advantage in rein production and explain why?