A $dc$ circuit shown in the figure is has a voltage source $\text{V}$, a current source $I$ and several resistors. A particular resistor $\mathrm{R}$ dissipates a power of $4$ Watts when $\mathrm{V}$ alone is active. The same resistor $\mathrm{R}$ dissipates a power of $9$ Watts when $I$ alone is active. The power dissipated by $\mathrm{R}$ when both sources are active will be
- $1 \mathrm{~W}$
- $5 \mathrm{~W}$
- $13 \mathrm{~W}$
- $25 \mathrm{~W}$