Which one of the following is not a navigation mode used by FMS for computing position of the aircraft?

Inertial (IRS) ‚Äö√Ñ√∂‚àö√ë‚àö¬® GPS

Inertial (IRS) ‚Äö√Ñ√∂‚àö√ë‚àö¬® DME/DME

Inertial (IRS) ‚Äö√Ñ√∂‚àö√ë‚àö¬® VOR/DME

Which one of the following is not a navigation mode used by FMS for co

1.	Which one of the following is not a navigation mode used by FMS for computing position of the aircraft?
A.	Inertial (IRS) ‚Äö√Ñ√∂‚àö√ë‚àö¬® GPS
B.	Inertial (IRS) ‚Äö√Ñ√∂‚àö√ë‚àö¬® DME/DME
C.	Inertial (IRS) ‚Äö√Ñ√∂‚àö√ë‚àö¬® VOR/DME
D.	GPS only
Answer» E.