A certain lever system is only 30% efficient. What could make it more efficient? (1 point)

Responses

Make a longer lever that will require less force.
Make a longer lever that will require less force.
Use a stiffer lever to reduce energy lost bending the lever.
Use a stiffer lever to reduce energy lost bending the lever.
Use it with a lighter load to make it easier.
Use it with a lighter load to make it easier.
Have more than one person help to lift the lever..

Use lubrication on the pivot points to reduce friction and energy loss.