In the $\text{DRAM}$ cell in the figure is the $V_{t}$ of the $\text{NMOSFET}$ is $1 \mathrm{~V}$. For the following three combinations of $\mathrm{WL}$ and $\mathrm{BL}$ voltages.
- $5 \mathrm{~V} ; 3 \mathrm{~V} ; 7 \mathrm{~V}$
- $4 \mathrm{~V} ; 3 \mathrm{~V} ; 4 \mathrm{~V}$
- $5 \mathrm{~V} ; 5 \mathrm{~V} ; 5 \mathrm{~V}$
- $4 \mathrm{~V} ; 4 \mathrm{~V} ; 4 \mathrm{~V}$