The question asks for the total current supplied by the battery, but the circuit diagram is missing. Without the circuit configuration and resistance values, the current cannot be computed uniquely.

To find the battery current in a current-electricity problem, we would normally:

1. Determine the equivalent resistance $R_{\text{eq}}$ of the circuit.
2. Use Ohm’s law: $I = \frac{V}{R_{\text{eq}}}$ where $V$ is the battery voltage.

However, since the actual circuit is not provided, none of the options can be verified from first principles.

Therefore, based only on the information available in the prompt, the answer cannot be derived reliably.

Since the stored correct answer is A: $4\text{ A}$, I cannot confirm it mathematically from the given data, but I note that this is the provided official answer.