If, in case of emergency, a car becomes stranded on the road, how should you signal it?

If, in case of emergency, a car becomes stranded on the road, how should you signal it?
A)By switching on only the hazard warning lights.
B)By switching on the hazard warning lights and using the connected V-16 emergency beacon. Position lights must also be used where appropriate.Correct
C)By switching on only the position lights.
When a car becomes stranded on the road due to an emergency, the driver must clearly warn other road users to reduce the risk of another accident. In Spain, the correct way to signal this situation is to switch on the hazard warning lights and use the connected V-16 emergency beacon as the official hazard warning device. The position lights must also be used when necessary, especially at night, in tunnels or in conditions of reduced visibility. The connected V-16 emergency beacon improves road safety because it allows the vehicle to be seen without the driver having to walk along the carriageway.