Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to boil sweet potatoes [title] Wash your sweet potatoes. [step] You should always wash produce before cooking it. Sweet potatoes are no different.

Ending1: To wash sweet potatoes, run them under cold tap water. Remove any excess dirt or debris from the potato. Ending2: They are liable to be very dirty and you don't want that for yourself! Rinse them first. This helps the pickling process along along. Ending3: They are delicate and need washing as often as possible to keep them healthy. They also don't produce the exact color you need. Ending4: Unpeeled and peeling produce should be washed before cooking it on a stove top burner. If you use frozen or canned potatoes, keep them in a cooler or in the refrigerator until you're ready to cook them.

Answer format: ending1/ending2/ending3/ending4