Which is not the indication of tracheotomy ( ) A: Diphtheria B: Laryngemphraxis C: Respiratory tract burn D: Low paraplegia

The Chinese meaning for“tracheotomy”is（） A: 气管切开术 B: 支气管切开术 C: 细支气管切开术 D: 子宫切开术

Who is qualified to perform the tracheotomy? ( ) A: head and neck surgeons B: General surgeons C: pediatric surgeons D: All of above