$6 \Omega$ nad $12 \Omega$ resistors are connected in parallel. This combination is connected in series with a $10\;V$ battery and $6 \Omega$ resistor. What is the potential difference between the terminals of the $12 \Omega$ resistor?

Question

$$\begin {array} {1 1} (1)\;4 \;V & \quad (2)\;16\;V \\ (3)\;2\;V & \quad (4)\;8\;V \end {array}$$