Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to clean a bulldog's face folds [title] Decide on your cleaning solution. [step] Use a cleanser for dogs, a saline solution, or a simple mix of water and dog shampoo. The only requirement is that the dog shampoo should be mild and ideally fragrance-free so that it won't dry out or irritate your bulldog's skin.

Ending1: [substeps] A mild cleanser shouldn't leave scratches or a residue. You can also use saline-free shampoo because these can be harsh. Ending2: [substeps] If your bulldog is not that dirty or prone to infections, you can simply use water. If you're mixing your own solution, combine one part water with one part dog shampoo. Ending3: There are no strict rules for what kind of dog shampoo and/or rinse solution you should use; the water content should all be roughly the same. [substeps] Rinse the cleanser out well or not at all. Ending4: Begin your cleansing process with the dog's clean face. [substeps] If you have an older dog and its face is not working, it may wish to consider using a shampoo to help to control his weight.

Answer format: ending1/ending2/ending3/ending4