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
Pituitary tumor most responsive to medical therapy is- 
Select and explain. 
A. Growth hormone secreting tumor, B. ACTH secreting tumor, C. Prolactinoma, D. Thyrotropin secreting tumors
C: Prolactinoma
Answer: C: Prolactinoma 
Explanation: For prolactinoma dopamine agonist are the treatment of choice Ref - ( Harrison 17 pg 2204)