Iodine is necessary for the synthesis of thyroid hormones. These hormones help regulate metabolic reactions related to body temperature, resting metabolic rate, macronutrient metabolism, growth, and reproduction. Select the statement that correctly describes iodine deficiency.
a. Iodine deficiency disorders generally do not cause brain damage.
b. Goiter is always the result of an iodine deficiency.
c. Goiter cannot be caused by excessive iodine intake.
d. Cretinism can occur in an infant if a mother is deficient in iodine during pregnancy.