WAEC BIOLOGY 2003 : The endocrine gland secreting hormone that induces the thyroid gland to produce more thyroxine is

The endocrine gland secreting hormone that induces the thyroid gland to produce more thyroxine is
A. islets of Langerhans
B. adrenal gland
C. pituitary gland
D. parathyroid gland
Answer: pituitary gland