Analyze the map below and answer the question that follows. A topographical map of the U S. Regions are labeled 1 to 6. 1 is on the west coast of California, Oregon, and Washington. 2 is an area in Nevada, Idaho, and Utah. 3 is a mountain area from Canada to New Mexico. 4 is a plains area including Oklahoma, Kansas, Nebraska, and the Dakotas. 5 is a coastal area including Louisiana, Alabama, Georgia, Florida, the Carolinas, Virginia, Maryland, and New Jersey. 6 is a mountain region from Canada and Maine in the north to Tennessee in the south. All of the following landforms are labeled with numbers on the map above except the __________. A. Great Plains B. Coastal Plains C. Canadian Shield D. Appalachian Mountains Please select the best answer from the choices provided A B C D