Which of the following hormones is secreted by the anterior pituitary gland?
Melatonin
Thyroid-stimulating hormone (TSH)
Gonadotropin hormone-releasing hormone (GnRH)
Antidiuretic hormone (ADH)
The anterior pituitary gland secretes several hormones, including TSH, ACTH, growth hormone, prolactin, follicle-stimulating hormone, and luteinizing hormone. Melatonin is secreted by the pineal gland, and ADH is produced in the posterior pituitary gland.
Option b is the correct answer.