16、 Which of the following is most likely:
(A) Use of laryngeal mask airway can avoid airway complication
(B) Bilateral superficial cervical plexus blockade can not supplement local infiltration for tracheostomy with local anesthesia
(C) A topical block of internal branch of superior laryngeal never can be performed by local anesthetic to the piriform fossa mucosa
(D) The CO2 laser may not penetrate an endotracheal tube and ignite a fire
(E) Commercially available laser-safe tubes are resistant to the CO2 and Nd:YAG laser