What 6 machines in the lab could be automated by CNC technology?

A. Lathe, milling machine, bandsaw, drill press, belt sander, bench grinder
B. CNC machine, 3D printer, laser cutter, waterjet cutter, plasma cutter, EDM machine
C. Welding machine, lathe, bandsaw, CNC machine, drill press, belt sander
D. CNC machine, lathe, milling machine, drill press, laser cutter, waterjet cutter