Given below is an incomplete table about certain hormones, their source glands, and one major effect on the human body.
Identify the correct option for the three blanks $A$, $B$, and $C$.

Gland	Secretion	Effect on Body
$A$	Oestrogen	Maintenance of secondary sexual characters
Alpha cells of islets of Langerhans	$B$	Raises blood sugar level
Anterior pituitary	$C$	Over secretion leads to gigantism

• A

  $A$	$B$	$C$
  Placenta	Insulin	Vasopressin

• B

  $A$	$B$	$C$
  Ovary	Insulin	Calcitonin

• C

  $A$	$B$	$C$
  Placenta	Glucagon	Calcitonin

• D

  $A$	$B$	$C$
  Ovary	Glucagon	Growth hormone