In TM‚Äö√Ñ√∂‚àö√ë‚àö¬®UWB, the system uses a modulation technique called _______$

In TM‚Äö√Ñ√∂‚àö√ë‚àö¬®UWB, the system uses a m

1.	In TM‚Äö√Ñ√∂‚àö√ë‚àö¬®UWB, the system uses a modulation technique called _______$
A.	Pulse width modulation
B.	Pulse code modulation
C.	Pulse position modulation
D.	Pulse amplitude modulation
Answer» D. Pulse amplitude modulation