Analyze the map below and answer the question that follows. A satellite map of Southeast Asia. Four areas on the map are circled and labeled A, B, C, and D. A is Vietnam. B is Malaysia. C is Indonesia. D is the Philippines. Image courtesy of NASA Which country on the map above is both part of mainland Southeast Asia and an island? A. Vietnam (A) B. Malaysia (B) C. Indonesia (C) D. the Philippines (D) Please select the best answer from the choices provided A B C D