Four Resistors Are Connected Across an Ideal Dc Battery with Voltage

Multiple Choice

Four resistors are connected across an ideal dc battery with voltage $V$ , as shown in the figure. If the total current in this circuit is $I = 1 \mathrm {~A}$ , what is the value of the voltage $V$ ?

A) $10 \mathrm {~V}$
B) $2 \mathrm {~V}$
C) $8 \mathrm {~V}$
D) $6 \mathrm {~V}$
E) $4 \mathrm {~V}$