The correct answer is (d), iodine. Iodine is a mineral that is essential for the production of thyroid hormones, which are necessary for normal growth and development. However, iodine is not directly involved in the formation or strengthening of bones and teeth.
Calcium is a mineral that is essential for the formation and maintenance of strong bones and teeth. It is also important for muscle contraction, nerve function, and blood clotting. Phosphorus is a mineral that is also essential for the formation and maintenance of strong bones and teeth. It is also important for energy production, cell signaling, and DNA synthesis. Fluoride is a mineral that helps to strengthen teeth and prevent tooth decay. It does this by making the tooth enamel more resistant to acids produced by bacteria in the mouth.
Iodine is a mineral that is essential for the production of thyroid hormones. Thyroid hormones are necessary for normal growth and development, as well as for the regulation of metabolism. Iodine deficiency can lead to a number of health problems, including goiter, hypothyroidism, and cretinism.
Therefore, the correct answer is (d), iodine.