The image shows a patient who suffers from goitre. The ______________ of the patient swells 肿. The patient is encouraged to eat seafood because seafood contains a huge quantity of _________ which is required in the formation of ___________.

A. Pituitary gland, vitamin K, growth hormone

B. Pituitary gland, potassium, oxytocin

C. Thyroid gland, iodine, thyroxine

D. Thyroid gland, sodium, adrenaline