The nurse is providing an in-service on thyroid disorders. One of the attendees asks the nurse. "Why don't the people in the United States get goiters as often? Which statement by the nurse is the best response?

A. "Iodized salt helps prevent the development of goiters in the United States.": Iodine deficiency is a primary cause of goiter, and in the United States, the widespread use of iodized salt has significantly reduced the incidence of goiters. B. "It is because of the screening techniques used in the United States.": While screening for thyroid disorders is important, it is not the primary reason for the lower incidence of goiters. The main reason is the availability of iodine through iodized salt. C. "The medications available in the United States decrease goiters.": Medications like thyroid hormone replacements can help manage thyroid disorders, but they do not directly prevent goiters. The reduction in goiters is mainly due to dietary iodine availability. D. "It is a genetic predisposition rare in North Americans.": While genetic factors can play a role in thyroid disorders, iodine deficiency is the primary cause of goiters worldwide. Iodine deficiency is less common in the United States due to iodized salt, not genetic predisposition.