A 45-year-old hypeensive female patient, presented with complaints of recurrent sinusitis, otitis media, nasal blockage, cough, haemoptysis and chest discomfo. O/E, Nasal septal perforation Palpable purpura Non-healing ulcers in lower limbs Lab findings, Anemia Leukocytosis and raised ESR Proteinuria Increased C-ANCA levels HPE examination revealed necrotizing vasculitis and granuloma formation. Chest x-ray CECT chest Which of the following is the 1st line drug for the above condition: -