This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
True about pseudohypoparathyroidism -a) Heterotopic calcificationb) ↑ed Ca2+c) Budd- chiary syndromed) ↑ ed response of urinary CAMP on PTH 
Select and explain. 
A. b, B. c, C. ad, D. ab
C: ad
Answer: C: ad 
Explanation: None