Which of the Following Statements Does NOT Refer to the Control

Which of the following statements does NOT refer to the control of calcium metabolism

A) Its plasma level is increased by activation of osteoclasts due to the action of PTH (parathyroid hormone) .
B) Its secretion of into the lumen of the digestive tract is increased by vitamin D.
C) Its renal reabsorption is increased by PTH.
D) Calcitonin causes a decrease in its plasma level by decreasing its movement from the bone fluid into the plasma, and by suppressing bone resorption.