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
A Young women with secondary amenorrhoea and galactorrhoea. MRI shows a tumous of < 10 mm diameter in the pituitary fossa. Treatment is - 
Select and explain. 
A. Hormonal therapy for withdrawal bleeding, B. Radiotherapy, C. Chemotherapy, D. Bromocriptine
D: Bromocriptine
Answer: D: Bromocriptine 
Explanation: bromocriptine is a dopamine receptor agonist that suppress prolactin secretion .It rapidly lowers serum prolactin levels to normal in upto 70% of patients and tumor shrinks ( Harrison 17 pg 2206)