A female Mamta,26 year old presented with gradually increasing respiratory distress since 4 days.She gives history of hospitalisation and mechanical ventilation with orotracheal intubation for 2 weeks.Now she is diagnosed as having severe tracheal stenosis.What would be the next line of management

• A. Laser excision and stent insertion
• B. Steroids
• C. Tracheal dilation
• D. Tracheal resection and end to end anastomoris