A Primary Adenoma Causes Thyroid and Adrenal Hypofunction Because the Tumor

A primary adenoma causes thyroid and adrenal hypofunction because the tumor:

A) metastasizes to the thyroid and adrenal glands through the lymphatic system causing reduced secretion of necessary hormones.
B) has a paradoxical effect on adjacent cells, which results in hyposecretion of other anterior pituitary hormones.
C) invades the hypothalamus adjacent to it and causes a reduction in the amount of hormones produced.
D) releases tumor markers that occupy the hormone receptor sites of other endocrine organs.