An aerodrome at 4,300 ft reports −34°C (about ISA −40°C). Using the rule of thumb of 4% of height above the aerodrome for each 10°C below ISA, what is the true height when the altimeter (QNH) shows 2,000 ft above the aerodrome?
- AAbout 1,680 ft
- BAbout 2,000 ft
- CAbout 2,320 ft
- DAbout 1,920 ft