A 29-year-old nurse presents with fever, night sweats, weight loss, and a chronic productive cough. A chest X-ray shows cavitary lesions in the upper lobes. Which of the following is the most appropriate first-line treatment regimen?AIsoniazid, rifampicin, pyrazinamide, ethambutol for 2 months then isoniazid and rifampicin for 4 monthsBIsoniazid and rifampicin for 9 monthsCIsoniazid, rifampicin, and ethambutol for 6 monthsDRifampicin monotherapy for 6 monthsEIsoniazid, rifampicin, pyrazinamide, ethambutol for 6 monthsCheck my answer