Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to protect cars from scratches [title] Starting at the roof of the car, rinse downwards using a water hose or bucket of cold water. [step] Rinse the accumulated dust and dirt from the car. [title] Read the instructions on the label of the car wash.

Ending1: [step] Some car washes might do this with automotive vehicles before turning on the wash. You can read by reading manuals such as : [substeps] Windshield wash window wash car windshield rinse [title] Mix 1 tbsp. Ending2: [step] Start spraying grease by adding three inches (7.6 cm), one inch (2.5 cm) for every third squeeze. Repeat to the roof, floor and all other car structures. Ending3: [step] Unfortunately cars' makers cannot properly treat scratches because the paint must be smooth before it can properly be applied. Use rubbing alcohol if there is any residue left behind from efforts. Ending4: [step] Squeeze it in the soapy mixture to ensure it is completely wet, then begin cleaning the car from the roof downwards using a circular motion. [title] Place the sponge/mitt into the bucket of water.

Answer format: ending1/ending2/ending3/ending4