A forklift driver finishes loading but the HGV driver can see one pallet leaning against a curtain. What should happen before departure?

1. The concern should be raised and the pallet made stable and secure before the vehicle leaves
2. The curtain should be closed tighter to hold the pallet upright
3. The driver should rely on the forklift driver's signature
4. The vehicle should depart slowly so the pallet settles