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Consider the CMOS circuit shown, where the gate voltage $V_{G}$ of the n-MOSFET is increased from zero, while the gate voltage of the p-MOSFET is kept constant at $3 \mathrm{~V}$. Assume that, for both transistors, the magnitude of the threshold voltage is $1 \mathrm{~V}$ and the product of the transconductance parameter and the (W/L) ratio, i.e. the quantity $\mu C_{o r}(\mathrm{~W} / \mathrm{L})$, is $1 \mathrm{~mA} \cdot \mathrm{V}^{-2}$.
For small increase in $V_{G}$ beyond $1 \mathrm{~V}$, which of the following gives the correct description of the region of operation of each MOSFET ?