A circuit consists of an ideal battery with electromotive force \(\varepsilon\) and two resistors, \(R_1\) and \(R_2\), connected in series using copper wires of negligible resistance, where \(R_2 = 2R_1\). A path of total length \(L\) is traced clockwise around the closed loop, starting at position \(x = 0\) at the negative terminal of the battery, passing through the battery to the positive terminal, then through resistor \(R_1\), and finally through resistor \(R_2\) back to \(x = L\). Which of the following graphs best represents the electric potential \(V\) as a function of position \(x\) along this path?