A diagram shows a single battery whose positive terminal is on the left, connected to a resistor on the right. An arrow above the resistor, labeled I, points from right to left. The accompanying text states, “Conventional current flows from the battery’s positive terminal to its negative terminal.” Which of the following evaluates the correctness of the arrow’s orientation?
(a) The arrow is irrelevant; the resistor’s value, not the battery, sets the current’s direction.
(b) The arrow is incorrect because conventional current should point from left to right, away from the battery’s positive terminal.
(c) The arrow is correct because conventional current is opposite to electron flow, and electrons travel from right to left in this circuit.
(d) The arrow’s orientation cannot be judged without knowing whether the battery’s internal resistance might reverse the current’s direction.