A 40-Ω Resistor Is Connected with a 12-Ω Resistor and This

A 4.0-Ω resistor is connected with a 12-Ω resistor and this combination is connected across an ideal dc power supply with V = 6.0 V, as shown in the figure. When a total current I flows from the power supply, what is the current through the 12-Ω resistor?

A) 1.5 A
B) 2.0 A
C) 2.5 A
D) 3.0 A
E) 0.50 A