It is the insulating layer of ________ in the MOSFET construction that accounts for the very desirable high input impedance of the device.

It is the insulating layer of ________ in the MOSFET construction that

1.	It is the insulating layer of ________ in the MOSFET construction that accounts for the very desirable high input impedance of the device.
A.	SiO
B.	GaAs
C.	SiO
D.	<sub>2</sub>
E.	HCl
Answer» D. <sub>2</sub>