A box is pulled at constant speed along a rough surface.

1. The work done by all conservative forces on the box is negative.
2. The work done by all non-conservative forces on the box is negative.
3. The work done by all non-conservative forces on the box is 0.
4. The work done by all conservative forces on the box is positive.
5. The work done by all non-conservative forces on the box is positive.