Analyze the map below and answer the question that follows. A topographic map of Northwestern Russia. Areas on the map are circled and labeled 1, 2, 3, and 4. 1 is a mountain range. 2 is a flat area. 3 is a highland area. 4 is a plateau. Image by Natural Earth All of the regions on the map above are part of Siberia except . A. region 1 B. region 2 C. region 3 D. region 4 Please select the best answer from the choices provided A B C D