____________ alloys such as InGaAsP and GaAsSb deposited on InP and GaSb substrate.

III ‚Äö√Ñ√∂‚àö√ë‚àö¬® V alloys

____________ alloys such as InGaAsP and GaAsSb deposited on InP and Ga

1.	____________ alloys such as InGaAsP and GaAsSb deposited on InP and GaSb substrate.
A.	Ternary
B.	Quaternary
C.	Gain-guided
D.	III ‚Äö√Ñ√∂‚àö√ë‚àö¬® V alloys
Answer» B. Quaternary