Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to clean a portobello mushroom [title] Wet a folded paper towel with cool water. [step] Wring out the excess water so that the paper towel is just slightly damp. In most cases, a little bit of moisture is all you'll need to clean a freshly picked and packaged portobello.

Ending1: Saturate a damp towel in cool water and wring out it well so that the towel is totally saturated. [substeps] If you don't have a paper towel, you can get a handkerchief out of a box that goes along with the portobello mushrooms. Ending2: [substeps] Because of the size and anatomy of portobello mushrooms, they should be cleaned individually to ensure that the receive adequate attention. You can also use the soft side of a kitchen sponge. Ending3: [title] Wipe the portobello mushrooms with the damp paper towel. [step] Fold the trimmed portobello mushrooms in half lengthwise and rub them with the towel until they're dry. Ending4: [substeps] Store-bought portobellos will hold up fine because they are already clean. [title] Scrub the mushrooms with a gentle scrub of a vegetable brush.

Answer format: ending1/ending2/ending3/ending4