Finish the following sentence with the best choice: How to find a bad wire in a car.

Choices:
- Locate the radiator its metal box, run your hands through the wires with the car off and gently wiggle them, if you see a spark its possibly grounded to metal and a bad wire.
- Locate the ECU its plastic box, run your hands through the wires with the car off and gently wiggle them, if you see a spark its possibly grounded to metal and a bad wire.

Answer:
Locate the ECU its plastic box, run your hands through the wires with the car off and gently wiggle them, if you see a spark its possibly grounded to metal and a bad wire.