A. A lot of foreign medical schools do not welcome U. S. students simply because they have to consider the applicants from their own countries first.
B. To enter foreign medical schools is much easier than to gain admittance into American medical schools if the problem of language is not regarded.
C. There are not many good foreign medical schools according to American students.
D. There are so many difficulties in studying abroad that not many American students succeed in their studies in foreign medical schools.