Please read the following vignette and watch the video clip (Fig 1). Figure 1. A 39-2/7-weeks' gestation infant is delivered via cesarean delivery for persistent fetal bradycardia. The amniotic fluid is clear. A limp, apneic infant is handed to the neonatal team. The infant is warmed, dried, and stimulated, and the airway is opened. Thirty seconds after birth, the heart rate is undetectable, and positive pressure ventilation is started at a rate of 60. The heart rate remains undetectable after 15 seconds of positive pressure ventilation; the team opens the mouth, repositions the head, and reapplies the mask. Sixty seconds after birth, there is still no heart rate. Which of the following options will optimize the performance depicted in the video? 1. Depress the sternum to one-half the anterior-posterior diameter. 2. Discontinue coordination of ventilation and chest compressions. 3. Increase oxygen concentration to 100%. 4. Lift thumbs off the chest between compressions. 5. Provide compressions via the 2-finger technique. Correct Response C. Increase oxygen concentration to 100%. Ventilation is the most …