A 12-year-old boy presents with muscle cramps, paresthesias, and a history of developmental delay. Vital signs: BP 118/76 mmHg, HR 88 bpm, RR 16/min, Temp 37°C, SpO2 98% on room air. Physical examination reveals short fourth and fifth metacarpals bilaterally and mild facial dysmorphism. Laboratory studies demonstrate serum calcium 7.2 mg/dL, phosphate 5.8 mg/dL, and PTH 156 pg/mL. Thyroid function tests are normal. Which of the following is the most likely diagnosis?

1. A)DiGeorge syndrome
2. B)PseudohypoparathyroidismGABARITO
3. C)Primary hyperparathyroidism
4. D)Vitamin D deficiency
5. E)Hypoparathyroidism after thyroid surgery