This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
Hypophostemia is a caused by - 
Select and explain. 
A. Primary hypothyroidism, B. Primary hyperparathyroidism, C. Primary hypehyroidism, D. Hypoparathyroidism
B: Primary hyperparathyroidism
Answer: B: Primary hyperparathyroidism 
Explanation: Ref - journal on Hypophosphatemia , England journal of medicine