<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 22-year-old woman comes to the physician because of a 1-month history of a light greenish, milky discharge from both breasts. There is no mastalgia. She has hypothyroidism and migraine headaches. Her mother has breast cancer and is currently undergoing chemotherapy. Menses occur at regular 28-day intervals with moderate flow; her last menstrual period was 1 week ago. Current medications include levothyroxine and propranolol. She appears anxious. Her temperature is 37.1C 98.78F, pulse is 82min, and blood pressure is 11672 mm Hg. The lungs are clear to auscultation. Breast examination is unremarkable. Pelvic examination shows a normal vagina and cervix. Serum studies show:Thyroid-stimulating hormone 3.5 μUmLProgesterone 0.7 ngmL Follicular phase: N 3Prolactin 18 ngmLFollicle-stimulating hormone 20 mIUmLA urine pregnancy test is negative. Which of the following is the most appropriate next step in management?? A: Galactography of both breasts, B: Mammogram of both breasts, C: MRI of the head, D: Ultrasound of both breasts, E: Reassurance and recommend avoidance of nipple stimulation,  <response>: This is a clinical case about a 22-year-old woman with a 1-month history of greenish, milky discharge from both breasts. Key findings include:- Light greenish, milky discharge from both breasts for 1 month- No breast pain - Hypothyroidism and migraine headaches- Mother with breast cancer undergoing chemotherapy- Regular menstrual cycles- Normal physical exam except for discharge - Normal thyroid, progesterone, prolactin, and FSH labs- Negative pregnancy testThe differential diagnosis includes galactorrhea, which can be caused by pituitary adenomas, hypothyroidism, medications, nipple stimulation, or other conditions. However, her prolactin level is normal, making a prolactinoma less likely. Her thyroid levels are controlled on medication. The unilateral discharge makes breast cancer unlikely. The options include imaging studies or reassurance. However, in a young patient with no concerning findings, imaging is not warranted. Therefore, the best next step is reassurance and avoidance of nipple stimulation, as this is likely physiologic galactorrhea.E: Reassurance and recommend avoidance of nipple stimulation 