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: Pathology
Paraneoplastic syndrome Hypercalcemia of malignancy, is produced due to ectopic production of which hormone by lymphomas ? 
Select and explain. 
A. PTHrP, B. 1,25 dihydroxyvitamin D, C. PGE2, D. Parathormone
B: 1,25 dihydroxyvitamin D
Answer: B: 1,25 dihydroxyvitamin D 
Explanation: Ans. is 'b' i.e., 1, 25 dihydroxyvitamin D