What is the primary role of thyrotropin-releasing hormone (TRH) in the regulation of thyroid function?

A Stimulation of thyroid hormone production ✓
B Inhibition of thyroid-stimulating hormone (TSH) secretion
C Regulation of thyroid gland growth and development
D Modulation of peripheral tissue sensitivity to thyroid hormones

Explanation

TRH is a hormone produced by the hypothalamus that stimulates the anterior pituitary gland to release TSH, which in turn stimulates the thyroid gland to produce thyroid hormones.

Source

Guyton and Hall Textbook of Medical Physiology
Hormones and Endocrine Markers Endocrinology Thyroid Hormone Regulation Medium MEDICAL Confidence: high