Problem: A 34-year-old G4P3 at 30 weeks gestation presents with bright red vaginal bleeding after intercourse. Examination reveals a soft, non-tender uterus. The cervical os is closed and there is a scant amount of blood in the vaginal vault. She denies uterine cramping. The suspected diagnosis is confirmed by ultrasound. Which of the following is indicated? A. Caesarean section B. Bimanual examination C. Intravenous magnesium sulfate OD. Pelvic rest and avoidance of strenuous exercise