<prompt>  2 days after birth a baby developed respiratory distress and had scaphoid abdomen. Breath sounds were decreased on left side. After bag and mask ventilation, ET tube was put and maximal cardiac impulse shifted to the Right side. What is the next step of managementNaso-gastric tube insertionRemove ET tube and reattempt intubationChest X-rayConfirm the position of endotracheal tube 