Final answer:
All options listed, including growth hormone, thyroid-stimulating hormone, adrenocorticotropic hormone, and prolactin, are produced by the anterior pituitary. There is likely an error in the question as it suggests one of these is not produced by the anterior pituitary.
Step-by-step explanation:
The anterior pituitary gland is known for producing several key hormones crucial for various physiological processes. This question asks us to identify which hormone is not produced by the anterior pituitary. The anterior pituitary produces growth hormone (GH), thyroid-stimulating hormone (TSH), adrenocorticotropic hormone (ACTH), as well as follicle-stimulating hormone (FSH), luteinizing hormone (LH), and prolactin (PRL). However, when considering the options provided, all of them are hormones secreted by the anterior pituitary: GH, TSH, ACTH, and prolactin. None of the options listed are incorrect, hence there might be an error in the question if it suggests that one of them is not produced by the anterior pituitary.