Consider the following statements with respect to Calcitonin:
$I$. It is non-iodised.
$II$. It is secreted by parafollicular cells.
$III$. It regulates the calcium level in blood.
$IV$. It is also called as $TCT$ (Thyrocalcitonin).
$V$. It is a hyperglycemic agent.
Select the option containing correct statements from the above given statements.

• A
  $I, II, III$ and $V$
• B
  $I, II, III$ and $IV$
• C
  $I, III, IV$ and $V$
• D
  $II, III, IV$ and $V$