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': 'Melasma, during pregnancy is seen on: March 2011 \nSelect and explain. \nA. Breast, B. Face, C. Abdomen, D. Limbs', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. B: Face Chloasma gravidarum/ pregnancy mask is an extreme form of pigmentation around the cheek, forehead and around the eyes, during pregnancy Signs of pregnancy: Chadwick's sign: Congestion of pelvis causes bluish/ purplish hue of vagina/ cervix Goodell's sign: Cyanosis of softening of cervix Hegar's sign: Compressibility of isthmus on bimanual examination Piskacek's sign: Softening of cervix with lateral implantation Osiander's sign: Pulsations in lateral vaginal fornix Palmer's sign: Rhythmic contractions of uterus Weinberg sign: Abdominal pregnancy", 'role': 'assistant'}]