Question ATPL - Airline Transport Pilot license - Meteorology

The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of: - ATPL

1,98°C per 1000 FT up to 36090 FT and will then rise at 0.3°C per 1000 FT up to 65617 FT when it will remain constant

2°C per 1000 FT up to 65617 FT after which it will remain constant to 104987 FT

1.98°C per 1000 FT up to 36090 FT after which it remains constant to 65617 FT

2°C per 1000 FT up to 36090 FT and will then increase at 0.3°C per 1000 FT up to 65617 FT