Which of these hormones increases ca++ concentration and slightly decreases phosphate ion concentration in the blood?

Parathyroid   hormones (PTH)   increases the        Ca++  concentration  and slightly   decreases   phosphate  ion concentration  in the blood.
   When   Parathyroid  hormone increases, the body  release  more  calcium   from  bones into  blood    which  lead to the increase  in calcium concentration in  the blood. 
    The  parathyroid  hormone increase  in the other hand  led to slightl
y  decrease  in phosphate  ions since   it reduces  the reabsorption  of phosphate    from  proximal  tubule   of the kidney

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Ithink its c but im not 100% sure