Which is not true about the thyroid gland?
A. It requires iodine to synthesize thyroid hormone.
B. An enlargement of the thyroid gland is called a goiter.
C. It is located on the anterior surface of the trachea, inferior to the thyroid cartilage.
D. It has two lobes connected by a central portion called the commissure.
E. It secretes thyroid hormone in response to stimulation by TSH.
Answer: D
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