This is a question with answer options. Goal: How to cut a wooden gear?

Which of the following methods is more reasonable for accomplishing this goal?

Pick from: I. Using the CNC we cut 7mm thin MDF Wood to create the board 128cm X 97cm with holes for gear shafts. Use a 15mm hammer to cut the gears.; II. Using the CNC we cut 7mm thick MDF Wood to create the board 128cm X 97cm with holes for gear shafts. Use a 15mm drill bit to cut the gears.;...I think the answer is
II.