Select the option that correctly matches an endocrine gland with its hormone and its function. 

• A

  Gland - Hypothalamus ; Hormone - ADH ; Function - Reabsorption of water in the PCT

• B

  Gland - Pineal ; Hormone - MSH ; Function - Diurnal rhythms

• C

  Gland - Parathyroid ; Hormone - PTH ; Function - Increases blood ${\mathrm{Ca}}^{2+}$ levels 

• D

  Gland - Thymus ; Hormone - Thymosin ; Function - Differentiation of B lymphocytes