Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean petrified wood [title] Choose a mild or natural cleaner. [step] Petrified wood should never be cleaned with chemicals. When cleaning petrified wood, opt for a mild cleanser or a natural one.

Ending1: Mild hand soaps and apple cider vinegar are good options to clean petrified wood. These should be enough to remove dirt and grime from your wood and leave it looking clean and fresh. Ending2: You should not use cleaners like clinique and yoghurt as these substances are too harsh and can cause damage to your wood. [substeps] Try using conventional household household cleaners like sealant instead. Ending3: Synthetics are a fair compromise, so don't use harsh items like talc, powder or lanolin. Even though petrified wood is very drought-resistant, never clean it. Ending4: If you've ever lived in the woods, " virtusement " or " kanson chemical disinfecting " is the most commonly used cleaner. [substeps] If you are unsure if your petrified wood is safe to use in a garden, be sure to check the box to be sure it is safe to use in your garden.

Answer format: ending1/ending2/ending3/ending4