Parathyroid hormone pth

How does parathyroid hormone (PTH) affect phosphate homeostasis in the body?

1: It increases phosphate reabsorption in the distal convoluted tubule.
2: It inhibits phosphate absorption in the small intestine.
3: It increases phosphate excretion by inhibiting reabsorption in the proximal convoluted tubule.
4: It has no significant effect on phosphate levels.