There are options for this question. I managed to find them elsewhere. They are:
A) TSH.
B) ACTH.
C) FSH.
D) LH.
E) GH.
The correct answer is A. TSH. TSH or thyroid stimulating hormone is produced by the pituitary gland and its role is to control/regulate the production and release of the thyroid hormones, thyroxine and triiodothyronine from the thyroid gland into the bloodstream.