They all have sanitary/cleaning qualities.
Option num 3...............................................
No they can't move themselves but rather transported
Answer:
Gently swishing a nonalcoholic mouthwash around the mouth can help loosen tonsil stones and reduce the amount of bacteria in the mouth. Having less bacteria can help prevent tonsil stones from forming. Nonalcoholic mouthwash is available in drugstores and online.
Explanation:
