Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to keep car windows fog free using a potato [title] Cut a raw potato in half. [step] Be sure to use a clean potato, so wash it first if it is coated in soil. This is a good opportunity to use up an old potato that has started to sprout and is past its best.

Ending1: [substeps] You can also use up the potatoes going green. [title] Rub the cut side of one half potato on the window. Ending2: Cut it in half lengthwise, forming a cut-throat pie shape. [substeps] Some people only cut 1 quarter inch off the pit of their potato. Ending3: [title] Sprinkle flour over all of the exposed flesh before placing the dish in your seasoning pan. [step] This is easier, because the flour will sift quickly and will not saturate the seasoning. Ending4: [title] Mark where you'll have to damage your car window screens using a piece of masking tape. [step] This is an old potato at a home improvement store that nearly always shows you where screen screens are housed.

Answer format: ending1/ending2/ending3/ending4