The odd one out is- ADH.
Explanation of correct option:
- ADH (Antidiuretic hormone) is released by the posterior pituitary gland and is a non- tropic hormone.
- ADH is responsible for promoting the reabsorbtion of water in the kidney tubules and maintaining water balance.
- ACTH (adrenocorticotropic hormone), TSH (thyroid-stimulating hormone), and FSH(follicle-stimulating hormone) are released by the anterior pituitary gland and are tropic hormones.