A

Step 1: Understand the setup of a potential divider. A potential divider usually consists of two resistors (in this case represented by the zig-zag line) connected in series with a voltage source.
Step 2: The basic formula for a potential divider is:
$$ V_{out} = V_{in} \times \frac{R_2}{R_1 + R_2} $$
where $V_{in}$ is the input voltage from the battery, $R_1$ is the resistance across terminals A, and $R_2$ is the resistance across terminals B.
Step 3: Connect a battery to the circuit with the positive terminal connected to point A and the negative terminal connected to point B. Ensure that point C is the output terminal where the voltage is measured.
Step 4: Thus, connect the circuit as shown in the diagram, with A being one terminal before the first resistor and B after the second resistor, while C can be connected between the resistors to measure the voltage across one of them.
Therefore, A.