Two batteries of e.m.f. 4V and 8 V with internal resistances 1 W and 2 W are connected in a circuit with a resistance of 9 W as shown in figure. The current and potential difference between the points P and Q are [AFMC 1999]

• A.            \[\frac{1}{3}A\,\,\text{and }\,3V\]
• B.            \[\frac{1}{6}A\,\,\text{and}\,\text{ }4V\]
• C.            \[\frac{1}{9}A\,\,\text{and}\,\text{ 9}V\]
• D.            \[\frac{1}{2}A\,\,\text{and}\,\,12V\]