The correct option is C Parathyroid hormone - Tetany
Parathyroid hormone produced by the Parathyroid gland helps maintain proper levels of calcium and phosphorus in blood, by regulating renal action. Thus, controls calcium and phosphorus levels in the bone. Hyposecretion of this hormone results in muscular tetany.
Gigantism is a result of hypersecretion of Growth hormone (GH) or Somatotrophic hormone (STH).
Hyposecretion of Thyroxine (T4) and Triiodothyronine (T3) by the thyroid gland causes Cretinism.
Hyposeretion of Vasopressin by the pituitary gland results in Diabetes insipidus.