This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
[{'content': 'Clinpro 5000 tooth paste used as remineralizing agent contain W/V: \nSelect and explain. \nA. 0.5% NaF, B. 0.21% NaF, C. 1.1% NaF, D. 0.02% NaF', 'role': 'user'}, {'content': 'Answer: C \nExplanation: One similar product to Clinpro" Tooth Crème is "Clinpro 5000 1.1% Sodium fluoride Anti-Cavity Toothpaste. It is sold to remineralize lesions throughout-not just on the surface.\n\nClinpro" Tooth Crème is an anti-cavity toothpaste, from 3M, that aids in the prevention of dental cavities and can be used in place of your usual toothpaste.\xa0\nExclusive formula protects against cavities and helps reverse white spots.\nPerfect for patients at moderate or high risk of dental cavities.\nContains 0.21% NaF\xa0As well as calcium and phosphate, which are components naturally found in saliva. Vanilla mint flavor.', 'role': 'assistant'}]