DeShawn is designing a picture frame. He plots the frame on the coordinate grid below.
On a coordinate plane, point A is at (negative 1, 3), point B is at (negative 3, negative 3), and point C is at (1, negative 3).
He plans to line edge Line B C with a special piece of molding. If each unit on the grid represents 5 inches, what is the length of the molding he will need?
4 inches
9 inches
20 inches
25 inches