Which statement regarding the thyroid gland and its hormones is INCORRECT?

• A. thyroid hyperactivity is associated with an increase in plasma catecholamines
• B. iodide trapping by thyroid cells is an active process
• C. thyroid hormones enter cells by diffusion across the cell membrane
• D. thyroid hormones cause an increase in 2,3 - DPG
• E. thyroid hormones increase growth hormone secretion