[Solved] Which of the following best defines sclerotic dentin? A) The dentinal matrix that immediately surrounds the dentinal tubule. B) The first dentin formed and deposited at the dentinoenamel junction. C) Dentin directly underlying mantle dentin,comprising the bulk of primary dentin. D) Obliterated tubules,found mainly in areas of attrition,abrasion,fracture,and caries. Revoking: The act of officially cancelling or withdrawing something, such as a law, contract, or privilege. Witnesses: Individuals who have seen something happen or have knowledge of a fact or event and can give testimony about it. Advance Directives: Legal documents that allow individuals to outline their preferences for medical care if they become unable to make decisions for themselves in the future. Medical Directives: Legal documents that specify a person's wishes regarding medical treatment in circumstances where they are unable to make decisions.