The answers are derived directly from the provided text. For (a), the text states that hypothalamic hormones 'regulate the synthesis and secretion of pituitary hormones,' identifying the Pituitary as the target. For (b), (c), and (d), the text lists the hormones as 'Thyroid stimulating hormone (TSH)', 'Adrenocorticotrophic hormone (ACTH)', and 'Gonadotrophins', and also lists 'Thyroid', 'Adrenal', and 'Gonads' as endocrine glands; the names of these hormones explicitly indicate their target glands. For (e), the text identifies the hormone as 'Melanocyte stimulating hormone (MSH)', implying that the target is Melanocytes.