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: Unknown
End tracheostomy is done in patients undergoing surgery for: 
Select and explain. 
A. Laryngectomy, B. Laryngofissure surgery, C. Oropharyngeal tumor, D. Obstructive sleep apnea with stridor
A: Laryngectomy
Answer: A: Laryngectomy 
Explanation: (Refer: PL Dhingra, Textbook of Ear, Nose, Throat, 6th edition, pg no: 316)
Types of tracheostomy

Emergency tracheostomy
Elective tracheostomy
Permanent tracheostomy
Percutaneous dilatational tracheostomy
Mini tracheostomy

Indications of tracheostomy