Given:
VS= Stalling speed
VMCA= Air minimum control speed
VMU= Minimum unstick speed (disregarding engine failure)
V1= take-off decision speed
VR= Rotation speed
V2 min.= Minimum take-off safety speed
VLOF: Lift-off speed
The correct formula is:
A
VS< VMCA< V2 min
B
V2min< VMCA> VMU
C
VMU<= VMCA< V1
D
VR< VMCA< VLOF