What is the writer's advice?

Câu hỏi: What is the writer's advice?

A. International students should have a thorough understanding of how the American education system works before going there to study.

B. International students should not study at a top USA university, a top USA college, a vocational or high school.

C. International students should not invest their future education in the US.

D. Without a clear grasp of the American education system, an international student can make the right academic choices.