The U.S. is currently trying to use its influence in international trade and politics to convince some other countries to change their economies in particular ways. Consider the effect of these U.S. proposals. A. There are a number of countries that use various techniques to keep foreign products out of their markets. The U.S. wants these markets opened to American products. What effect will the opening of these markets have on the countries' economies? Use the AD/AS model to answer the question. Explain your answer. (6 points) B. In many countries, children make up an important part of the labor force, as they did in the U.S. in the nineteenth century. One of the goals of some people in the U.S. and elsewhere is to eliminate child labor around the world. What effect would this have on economies where children are a large part of the labor force? Show this in a diagram and explain your answer. Can you explain why opponents of child labor face such a difficult battle? (6 points)