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: Pharmacology
A 47-year old male, Kishore exhibited signs and symptoms of acromegaly. Radiologic studies showed the presence of a large pituitary tumor. Surgical treatment of the tumor was only partially effective in controlling the disease. At this point, which of the following drugs is most likely to be used as pharmacological therapy? 
Select and explain. 
A. Desmopressin, B. Leuprolide, C. Octreotide, D. Somatropin
C: Octreotide
Answer: C: Octreotide 
Explanation: Drugs useful in acromegaly are:

Bromocriptine and cabergoline
Somatostatin
Octreotide (long-acting somatostatin analogue)
Pegvisomant (growth hormone receptor antagonist)