The correct answer is C. All of the mentioned.
CMOS circuits are made up of complementary metal-oxide-semiconductor (MOS) transistors. MOS transistors are a type of transistor that uses a metal gate to control the flow of current between two semiconductor materials, typically silicon. CMOS circuits are known for their low power consumption, high speed, and high noise immunity.
There are two types of CMOS circuits: p-well CMOS and n-well CMOS. P-well CMOS circuits use p-type wells, which are regions of p-type semiconductor material, to isolate the n-channel MOSFETs from the substrate. N-well CMOS circuits use n-type wells, which are regions of n-type semiconductor material, to isolate the p-channel MOSFETs from the substrate.
Both p-well CMOS and n-well CMOS circuits have their own advantages and disadvantages. P-well CMOS circuits are less susceptible to noise than n-well CMOS circuits, but they are also more susceptible to latch-up. N-well CMOS circuits are less susceptible to latch-up than p-well CMOS circuits, but they are also more susceptible to noise.
The choice of which type of CMOS circuit to use depends on the specific application. For applications where noise immunity is critical, p-well CMOS is the better choice. For applications where latch-up is critical, n-well CMOS is the better choice.
In general, CMOS circuits are a good choice for applications where low power consumption, high speed, and high noise immunity are important.