Consider this inverter circuit with the following parameters: VTn = 1 V, Kn′ = 1 mA/V2, (W/L)n = 1, λn = 0 V−1, VTp = −1 V, Kp′ = 1 mA/V2, (W/L)p = 1, λp = 0 V−1, VDD = 5 V a) If Vin = 0 V, what region will the PMOS and NMOS devices operate in? Find Vout. b) If Vin = 5 V, what region will the PMOS and NMOS devices operate in? Find Vout. c) If Vin = 3.5 V, what region will the PMOS and NMOS devices operate in? Find Vout .