Which statement about the required force to change the pitch angle is correct?

Question

Question PPL(H) - Private Pilot License - Principles of Flight (Helicopter)

QuizVDS · Accepted Answer

It must be greater than the tangential force

QuizVDS · Answer

It is the smallest by using an advance angle of 90°

QuizVDS · Answer

It is the smallest by using a delta-three-hinge

QuizVDS · Answer

It must be greater than the rotor disc loading

Id 724 - PPL(H) EN - Which statement about the required force to change the pitch angle is correct?