This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anaesthesia
Both oral and Nasal intubation are C/I – a) Laryngeal edemab) CSF–Rhinorrhoeac) Comatose patientd) Acute Tracheo–Laryngo-bronchitis 
Select and explain. 
A. b, B. c, C. ac, D. ad
D: ad
Answer: D: ad 
Explanation: Both nasal and oral intubation are contraindicated in Laryngeal edema, epiglotitis, and Laryngotracheobronchitis.