correct answer with samall explanation

The United States may have a comparative advantage in pharmaceuticals because of O its investment in research. its ability to bypass patent laws in various countries. its natural resource endowment. weather conditions. its geographical location in the world. An import tax whose main purpose is to provide revenue to the government is called a(n) O export subsidy. O per-unit tax. revenue tariff. income tax. O value-added tax. Suppose a stock has a higher expected rate of return than a bank account. Then O the price of the stock will rise and the expected rate of return will decrease. the price of the stock will fall and the interest rate will decrease. the price of the stock will fall and the expected rate of return will increase. the price of the stock will fall and the expected rate of return will decrease. Not enough information is given to determine the return on the stock