j. Consider a Ricardian model with two countries, the United States and the EU, producing two goods, soap bars and toothbrushes. Suppose the productivities are 05\" = 2 soap bars per worker, a; = 4 soap bars per worker, an\" = 8 toothbrushes per worker, and of = 4 toothbrushes per worker. Assume the United States has 3,200 workers and the EU has 4,000 workers. a. Plot the PPFs for both countries