Country x can produce 1,000 units of food and 2,000 units of clothes. country y can produce 1,000 units of food and 1,000 units of clothes. in order to maximize trade according to the principles of comparative advantage

a) country x should produce food and import clothes from country y.
b) country y should produce food and import clothes from country x.
c) country x and y should produce both food and clothes to meet their own needs.
d) country y should produce both food and clothes, and import additional clothes from country x.