question: Q:A 37-year-old primigravid woman at 36 weeks' gestation is admitted to the hospital 30 minutes after the onset of labor. On arrival, contractions occur every 8–10 minutes. During the last 2 days she has noted decreased fetal movements. The pregnancy had been complicated by gestational hypertension. Current medications include labetalol and a pregnancy multivitamin. Her temperature is 36.8°C (98.2°F), pulse is 94/min, and blood pressure is 154/96 mm Hg. On pelvic examination, the cervix is 40% effaced and 2 cm dilated; the vertex is at -2 station. The uterus is consistent in size with a 30-week gestation. Ultrasonography shows the fetus in vertex position and a decreased amount of amniotic fluid. A fetal heart tracing is shown. Which of the following is the most likely diagnosis?? 
  {'A': 'Umbilical cord prolapse', 'B': 'Umbilical cord compression', 'C': 'Physiologic fetal heart rate pattern', 'D': 'Placental insufficiency', 'E': 'Chorioamnionitis'},