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: Surgery
A 60 year old male was diagnosed as carcinoma right lung. On CECT chest there was a tumor of 5 ✕ 5 cm in upper lobe and another 2 ✕ 2 cm size tumor nodule in middle lobe. The primary modality of treatment is - 
Select and explain. 
A. Radiotherapy, B. Chemotherapy, C. Surgery, D. Supportive treatment
C: Surgery
Answer: C: Surgery 
Explanation: None