Following a single-wing stall and pitch-down moment, how can a spin be prevented?

Question

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

QuizVDS · Accepted Answer

Rudder opposite lower wing, releasing elevator to build up speed

QuizVDS · Answer

Deflect all rudders opposite to lower wing

QuizVDS · Answer

Pushing the elevator to build up speed to re-attach airflow on wings

QuizVDS · Answer

Pulling the elevator to bring the plane back to normal attitude

Id 568 - SPL - Following a single-wing stall and pitch-down moment, how can a spin be prevented?