In the circuit shown in the figure, an ideal $12\ \text{V}$ battery is connected through a $2\ \Omega$ resistor to two branches in parallel. One branch has an ideal diode $D_1$ in series with a $4\ \Omega$ resistor, and the other branch has an ideal diode $D_2$ in series with a $2\ \Omega$ resistor. The two diodes face opposite ways, as shown. The current drawn from the battery is

Fig. 1: A 12 V battery connected through a 2 ohm resistor to two parallel branches: diode D1 with a 4 ohm resistor, and diode D2, facing the other way, with a 2 ohm resistor.