<prompt> Low serum alkaline phosphatase is seen withHypoparathyroidismHypophosphatasiaHyperparathyroidismPseudo-hypoparathyroidism  <response>: SAP - Hypophosphatasia SAP - Rickets, increase PTH SAP- Pagets SAP Normal - Hypoparathyroidism,Pseudo hypoparathyroidism,Multiple myeloma,Osteoporosis 