4. a. Represent the map below with a graph.
b. Color the graph.
c. What is the minimum number of colors needed to color the map?
![4 a Represent the map below with a graphb Color the graphc What is the minimum number of colors needed to color the map class=](https://us-static.z-dn.net/files/d1a/1b312ec03e1fdab2a90abc9c9f151777.png)