What information is required to convert a minimum safe altitude into a lowest usable flight level?

Question

Question ATPL - Airline Transport Pilot license - Meteorology

QuizVDS · Accepted Answer

Lowest value of QNH and the highest negative temperature deviation from ISA

QuizVDS · Answer

Highest value of QNH and the highest positive temperature deviation from ISA

QuizVDS · Answer

Highest value of QNH and the highest negative temperature deviation from ISA

QuizVDS · Answer

Lowest value of QNH and the lowest negative temperature deviation from ISA

Id 29 - ATPL - What information is required to convert a minimum safe altitude into a lowest usable flight level?