What condition allows current to be conducted through the flame when using two flame rods?

What condition allows current to be conducted through the flame when using two flame rods?

• A. An AC current (milliamps) is conducted when a voltage is applied between two flame rods in the flame
• B. A DC current flows through the flame regardless of voltage
• C. No current can be conducted through the flame
• D. The flame conducts only when operated on DC

Answer: (A)