Which statement describes CMOS static power behavior?

Which statement describes CMOS static power behavior?

• A. CMOS cannot operate at rail-to-rail voltages.
• B. CMOS requires TTL-level input levels to switch.
• C. CMOS has high static power consumption always.
• D. CMOS has very low static power consumption because of near-zero current when not switching.

Answer: (D)