$A -$ Thyroid gland secretes a protein hormone called thyrocalcitonin $(TCT)$,which regulates the blood calcium levels.
$R - TCT$ is a hypercalcemic hormone.

  • A
    $A$ and $R$ both are correct.
  • B
    $A$ and $R$ both are incorrect.
  • C
    $A$ is correct and $R$ is incorrect.
  • D
    $A$ is incorrect and $R$ is correct.

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