The graphic in this text is used primarily
a) to show the reader the overall route, length, and location of the entire appalachian trail.
b) to show the reader the backpack supplies one would typically need to camp on the appalachian trail.
c) to give the reader an idea of what the forest looks like on a typical part of the appalachian trail.
d) to give the reader a picture of all the people who worked together to make the appalachian trail a reality.