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
True about prolactin is all except 
Select and explain. 
A. 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
C: Hyperprolactinema causes reflex increase in central dopamine levels which causes Menorrhagia
Answer: C: Hyperprolactinema causes reflex increase in central dopamine levels which causes Menorrhagia 
Explanation: Hyperprolactinemia → reflex increase in dopamine → acts on dopamine receptors on ovaries
→ Disrupts Folliculogenesis → Amenorrhea.