When the driver leaves their position in a parking space, they must...

A)Leave it in first gear with the handbrake engaged, only.
B)Take the necessary precautions to prevent the use of the vehicle without authorization, switch off the engine, disconnect the starting system and keep the parking brake engaged.Correct
C)Leave the steering wheels turned towards the roadway.
When the driver leaves their position in a parking space, they must keep the parking brake engaged, switch off the engine and disconnect the starting system.
If we park on a slope with a passenger car, in addition to leaving the parking brake engaged, we must:
- Engage the appropriate gear: first gear on an uphill slope, and reverse gear on a downhill slope, or, where applicable, the parking position.
Furthermore, if leaving the vehicle (a situation not indicated in the question), they must take the necessary precautions to prevent another person from using the vehicle without authorization.
If we park on a slope with a passenger car, in addition to leaving the parking brake engaged, we must:
- Engage the appropriate gear: first gear on an uphill slope, and reverse gear on a downhill slope, or, where applicable, the parking position.
Furthermore, if leaving the vehicle (a situation not indicated in the question), they must take the necessary precautions to prevent another person from using the vehicle without authorization.