Question SPL - Sailplane Pilot License - Operational Procedures

Flying slow close to stall conditions, the left wings is lower than the right wing. How can the stall be prevented? - SPL

Push on the elevator, keep wings level with coordinated inputs on rudder and aileron

Aileron and rudder to the reight, gain some speed, push slightly on the elevator, all rudders neutral

Airleron to the right, push slighty on the elevator, gain some speed, all rudders neutral

Rudder left, push slightly on the elevator, gain some speed, all rudders neutral