A 62-year-old man with a 30-year history of smoking presents with chronic productive cough and recent haemoptysis. Chest X-ray shows a right upper lobe mass. According to standard lung cancer diagnostic pathways, what is the next best step?AStart empirical antibiotics and repeat imaging in 6 monthsBUrgent CT chest and referral to a lung cancer diagnostic assessment programmeCNo further investigation is needed if symptoms improveDStart inhaled corticosteroidsEBronchoscopy is unnecessary in lung massesCheck my answer