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: Gynaecology & Obstetrics
[{'content': 'True about prolactin is all except \nSelect and explain. \nA. Primary hypothyroidism is associated with mild elevation in serum prolactin, B. Normal prolactin level is less than 20ng/mL in non-pregnant women, C. Hyperprolactinema causes reflex increase in central dopamine levels which causes Menorrhagia, D. Dopamine agonists decrease prolactin secretion', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Hyperprolactinemia\xa0→ reflex increase in dopamine → acts on dopamine receptors on ovaries\n→ Disrupts Folliculogenesis\xa0→ Amenorrhea.', 'role': 'assistant'}]