There are four international students living in a dormitory from the United States, Canada, South Korea, and Japan. They study in three departments: Chinese, International Finance, and Law. Among them: ① Japanese students are in the International Finance Department ② Korean students are not in the Chinese Department ③ United States An international student is in the same department as another international student.④ Canadian students are not in the same department as American students. Can the above conditions be introduced to the department of American students? ['Department of Chinese.', 'Department of International Finance.', 'Department of Law.', 'Department of Chinese or Law.']