**In CMOS logic circuit, the switching operation occurs because:**

a) Both n-MOSFET and p-MOSFET turns OFF simultaneously for input ‘0’ and turn ON simultaneously for input ‘1’

b) Both n-MOSFET and p-MOSFET turn ON simultaneously for input ‘0’ and turn OFF simultaneously for input ‘1’

c) N-MOSFET transistor turns ON, and the p-MOSFET transistor turns OFF for input ‘1’ and N-MOS transistor turns OFF, and the p-MOS transistor turns ON for input ‘0’

d) None of the mentioned

**Answer:**

c) N-MOSFET transistor turns ON, and the p-MOSFET transistor turns OFF for input ‘1’ and N-MOS transistor turns OFF, and the p-MOS transistor turns ON for input ‘0’

**Explanation:**

The switching process occurs in a CMOS logic circuit when N-MOS transistors turn ON and p-MOS transistors turn OFF for input ‘1’ and N-MOS transistors turn OFF and p-MOS transistors turn ON for input ‘0’. For any input pattern, one network is turned on and the other is turned off.

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