Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to clean portobello mushrooms [title] Wipe the caps with a damp cloth or paper towel. [step] Mushrooms are spongy and can soak up moisture quickly. Rinsing them under your faucet could cause them to become water-logged and soggy once cooked.

Ending1: Lightly dampen a cloth or paper towel and wipe the mushroom caps gently to remove any dirt from the surface. [substeps] If your mushrooms appear significantly dirty, you may have no choice but to rinse them very quickly under the tap. Ending2: [title] Boil your mushrooms for about 10 minutes. [step] If you're cooking portobello mushrooms, boil them for 2 to 4 minutes. Ending3: Immediately remove the caps with a clean, dry rag or paper towel. [title] Slice portobello mushrooms between two pieces of foil. Ending4: You can wash them prior to meals, though. [substeps] If you prefer, you can also buy portobello mushrooms from grocery stores.

Answer format: ending1/ending2/ending3/ending4