Question Exam BPL Gas - Balloon Pilot License - Meteorology

284 - Gas Balloon Pilot Exam BPL - What change of wind direction can be expected during the passage of a polar front low in Central Europe?

Backing wind during passage of the warm front, veering wind during passage of the cold front

Backing wind during passage of the warm front, backing wind during passage of the cold front

Veering wind during passage of the warm front, backing wind during passage of the cold front

Veering wind during passage of the warm front, veering wind during passage of the cold front