Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to braise lettuce [title] Prepare the lettuce. [step] First take sweet romaine lettuce and discard any wilting or unhealthy looking leaves. Using a sharp knife, cut ½ of stem off the lettuce.

Ending1: Trim the leaves so they are completely clean. Scoop a scoop of the romaine lettuce into the sink and fill it with ice cold water. Ending2: Cut another stem from the lettuce. Attach one of the leaves to one end of the lettuce. Ending3: Then wash the lettuce heads with warm water. If you see any visible dirt between the leaves of the lettuce, remove it by gently scrubbing. Ending4: Place the lettuce in a shallow dish to rest overnight. Allow the lettuce to rest at room temperature.

Answer format: ending1/ending2/ending3/ending4