With regard to the forces acting, how can stationary gliding be described?

Question

Question Quiz SPL - Sailplane Pilot License - Principles of Flight (Aeroplane)

QuizVDS · Accepted Answer

The sum of air forces compensates the gravity force

QuizVDS · Answer

The sum of air forces acts along the direction of air flow

QuizVDS · Answer

The sum the air forces acts along with the lift force

QuizVDS · Answer

The lift force compensates the drag force

Id 566 - SPL - With regard to the forces acting, how can stationary gliding be described?