HELP
Which of the following is a true statement about the map?


The border between South and North Dakota is a thin, blue line; this indicates a river boundary.

The border between Georgia and Florida is a thin, blue line; this indicates a state boundary.

The border between North Dakota and South Dakota is a thick, black line; this indicates a national boundary.

The border between Georgia and South Carolina is a dashed black line; this indicates a state boundary.