In the circuit shown in the figure, the channel length modulation of all transistors is non-zero (λ ≠ 0). Also, all transistors operate in saturation and have negligible body effect. The ac small signal voltage gain (Vo/Vin) of the circuit is

• A. \( - {g_{m1}}\left( {{r_{01}}\parallel {r_{02}}\parallel {r_{03}}} \right)\)
• B. \( - {g_{m1}}\left( {{r_{01}}||\frac{1}{{{g_{m3}}}}||{r_{03}}} \right)\)
• C. \( - {g_{m1}}\left( {{r_{01}}||\left( {\frac{1}{{{g_{m2}}}}||{r_{02}}} \right)||{r_{03}}} \right)\)
• D. \( - {g_{m1}}\left( {{r_{01}}||\left( {\frac{1}{{{g_{m2}}}}||{r_{03}}} \right)||{r_{02}}} \right)\)