Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to polish copper [title] Sprinkle half a lemon with table salt. [step] Cut a lemon in half. Then, sprinkle half the lemon with a generous amount of salt.

Ending1: [title] Get a small bowl with a large water source and mix the lemon water and salt in the bowl. [step] Mix until well-combined and lumps form. Ending2: [title] Rub the lemon onto the copper's surface. [step] For mildly tarnished jewelry, you can simply rub down the surface with the lemon. Ending3: Saturate the lemon with the salt, then wipe it off the copper. Then, follow up with a heavy-duty nail polish remover or a solution like iodine and acetone. Ending4: Be sure to drizzle all over the copper. Baking soda is great, but it tends to dry out and lose its " shine " sooner.

Answer format: ending1/ending2/ending3/ending4