Question

what is the name of the manufacturing process first developed by car manufacturers in japan?
lean
cellular
six sigma
additive

Explanation:

Lean manufacturing was first developed by Japanese car manufacturers. It focuses on minimizing waste while maximizing productivity. Cellular manufacturing is more about grouping machines into cells. Six Sigma is a quality - control methodology developed in the US (originally at Motorola). Additive manufacturing (3D printing) is a different manufacturing approach not first developed by Japanese car manufacturers.

Answer:

lean