g, kg, cg dL, L, mL ft, yd, mi N, J, W
I gave my students this multiple choice question: All of the following contain metric units of measurement except

Only one answer is correct among these 4 choices:
- g, kg, cg
- dL, L, mL
- ft, yd, mi
- N, J, W

Could you tell me which one is correct?

ft, yd, mi