GMAT Critical Reasoning (CR) | Re: Weaken Revision: Most water companies in the United States

A. Fluoride is widely used in commercially available dental care products.

B. Most Americans are not aware that fluoride is added to tap water.

C. Annual visits to the dentist are the most effective means of controlling tooth decay.

D. The United States has the lowest rate of tooth decay in the world.

E. Most Americans already brush their teeth daily.

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