Which of the following does not secrete any hormones?

Which of the following is not a hormone?

Endocrine glands are those glands that pour their secretions into .....

Which one of the following pairs of organs includes only endocrine glands?

Fill in the blanks:
$Hormones$ $Target$ $gland$
$(a)$ $Hypothalamic$ $hormones$ .....................
$(b)$ $Thyrotrophin$ $(TSH)$ .....................
$(c)$ $Corticotrophin$ $(ACTH)$ .....................
$(d)$ $Gonadotrophins$ $(LH, FSH)$ .....................
$(e)$ $Melanotrophin$ $(MSH)$ .....................

Identify which of the following are major endocrine glands?
$I$. Liver $II$. Gastric gland $III$. Pituitary gland $IV$. Thyroid
Choose the correct option.