19. One way to measure the benefits of international diversication is to compare the A. expected return for a portfolio of U.S. and foreign portfolios B. standard deviation of return for a portfolio of U.S. and foreign portfolios C. expected return and standard deviation of return for a portfolio of foreign countries D. expected return of portfolios in industrial countries E expected return and standard deviation of return for a portfolio of U.S. and foreign securities combined vs. U.S. securities alone