What action has to be considered by the pilot of a hot-air balloon with a double-burner installation, in case one burner valve fails?

Question

Question Quiz BPL Hot Air - Balloon Pilot License - Operational Procedures

QuizVDS · Accepted Answer

The ride can be continued by use of the remaining burner.

QuizVDS · Answer

An emergency call should be made.

QuizVDS · Answer

Both burner valves have to be shut down immediately.

QuizVDS · Answer

The ride has to be stopped immediately.

Id 375 - BPL Hot Air - What action has to be considered by the pilot of a hot-air balloon with a double-burner installation, in case one burner valve fails?