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
A patient with multiple myeloma and serum ca2+15mg/dl ; the treatment -a) Oral pamidronateb) Less than 15mg/dl serum calcium dose not causes symptomsc) Mithramycind) Glucocorticoids 
Select and explain. 
A. abc, B. acd, C. bc, D. bde
B: acd
Answer: B: acd 
Explanation: None