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: Radiology
A 60-year-old man with suspected bronchogenic carcinoma. TB has been ruled out in this patient. Investigation to be done in this patient is: 
Select and explain. 
A. CT guided FNAC, B. Bronchoscopy and biopsy, C. Sputum cytology, D. Chest X-ray
B: Bronchoscopy and biopsy
Answer: B: Bronchoscopy and biopsy 
Explanation: Ans. Bronchoscopy and biopsy