This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
Which of the following is the most dangerous variant of diphtheria 
Select and explain. 
A. Facial, B. Nasal, C. Laryngeal, D. Cutaneous
C: Laryngeal
Answer: C: Laryngeal 
Explanation: The most common complication of diphtheria is laryngeal diphtheria causes Asphyxia Asphyxia due to mechanical obstruction of the respiratory passage by the pseudomembrane, for which an emergency tracheostomy may be necessary. Ref: Textbook of microbiology; Ananthanarayan and paniker's; 10th Edition; Pg: 241