Insulin is

Hormones originating in the hypothalamic neurons, pass through ... $A.... \ldots$ and are released from their ...$B$... endings. These hormones reach the ...$C$... gland through a ...$D$... circulatory system and regulate the functions of the ...$E$... pituitary

Select the correct combination of $A , B$ and $C$ in reference to above paragraph

The organ which was considered vestigial till recently but now confirmed to be endocrine gland is

Hormones thyroxin, adrenaline and the pigment melanin are formed from

Polydipsia means ...$A$...       Polyphagia means ...$B$.    Glycosuria means ...$C$....

Choose the correct option for $A, B$ and $C$