This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to jumpstart a vehicle
Turn off all electrical components.
Components like lights, windshield wipers, radios, etc. Draw power from the battery to run.

pick from the following.
+ When the vehicle is idle, flip the turn switch to off. If it doesn't turn off, turn it on again..
+ If you want your battery to charge effectively, they will need to be turned off. Park a second car so that your batteries are as close as possible..
+ Detach a battery that's missing or doesn't function properly. Make sure to turn all of the lights off in the car to prevent the transmission from failing..
+ Avoid turning the battery on or off, as this can damage the battery system. Place the vehicle in its neutral position..
The answer is:
If you want your battery to charge effectively, they will need to be turned off. Park a second car so that your batteries are as close as possible.