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For the Zener diode shown in the figure, the Zener voltage at knee is $7 \mathrm{~V}$, the knee current is negligible and the Zener dynamic resistance is $10 \; \Omega$. If the input voltage $\left(V_{i}\right)$ range is from $10$ to $16 \; \mathrm{V}$, the output voltage $\left(V_{0}\right)$ ranges from

1. $7.00$ to $7.29 \mathrm{~V}$
2. $7.14$ to $7.29 \mathrm{~V}$
3. $7.14$ to $7.43 \mathrm{~V}$
4. $7.29$ to $7.43 \mathrm{~V}$