Answer:
A. 1 unit
Step-by-step explanation:
A cube has the same dimensions on each side, and the unit is 1 unit cube, none of the other options match.
You can easily rule out, B & D. That leaves you with A & C, and A makes the most sense, since 1 cubic unit would be the volume, and this question is only asking for the side length.
Good luck, hopefully, this helped!
