Answer: i can answer the first one but the second one i might get wrong
Explanation:
for the first question answer B because external lights do not help unless it is dark, you need your battery to start the car and your fluids to keep the car running, your windshield's keep the raid and weather from entering your car as well as stopping you from flying out the window. Your mirrors help you keep track of whats behind you and showing you if you have enough space to turn.
now for the second question i would say in the manual of your car because every car has a manual to read on how to work the car/fix it