Q. In finish machining of an island on a casting with CNC milling machine, an end mill with 10 mm diameter is employed. The corner points of the island are represented by (0, 0), (0, 30), (50, 30) and (50, 0). By applying cutter radius right compensation, the trajectory of the cutter will be

• (A) (-5, 0), (-5, 35), (55, 35), (55,-5), (-5,-5)
• (B) (0,-5), (55,-5), (55, 35), (-5, 35), (-5,-5)
• (C) (5, 5), (5, 25), (45, 25), (45, 5), (5, 5)
• (D) (5, 5), (45, 5), (45, 25), (5, 25), (5, 5)