Natalie is lethargic, has poor tolerance to cold, and the amount of thyroid hormone in her body is low even though the level of TSH is high. Natalie has a goiter. Which of these diagnoses is the most likely for Natalie's condition?
A) defective thyroid hormone receptors in the body cells
B) insufficient iodine in the diet
C) defective receptors for thyroid hormone control by the anterior pituitary
D) too much iodine in the diet
B
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