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An enhancement $\text{MOSFET}$ of threshold voltage $3\:V$ is being used in the sample and hold circuit given below. Assume that the substrate of the $\text{MOS}$ device is connected to $-10\:V$. If the input voltage $V_{1}$ lies between $\pm 10\:V,$ the minimum and the maximum values of $V_{G}$ required for proper sampling and holding respectively, are

1. $\text{3 V and -3 V}$.
2. $\text{10 V and -10 V}$.
3. $\text{13 V and -7 V}$.
4. $\text{10 V and -13 V}$.