You measured PTH level and found out it's HIGH (in setting of hypocalcemia) what's causing this? (3 causes categories)
A) Parathyroid adenoma, vitamin D deficiency, chronic kidney disease
B) Parathyroid adenoma, hyperthyroidism, magnesium deficiency
C) Parathyroid hyperplasia, vitamin D deficiency, acute kidney injury
D) Parathyroid hyperplasia, hypothyroidism, chronic kidney disease