In Which of the Following Cases of Lung Cancer Would

In which of the following cases of lung cancer would surgical resection of the tumor be a reasonable therapeutic option?

A) A 56-year-old woman with an adenocarcinoma of the right lung. CT scan shows enlarged lymph nodes in the right and left hilum. PFTs show an FEV1 of 2.25 L. (55% predicted) .
B) A 59-year-old man who is found at bronchoscopy to have a tumor in the right mainstem bronchus extending to within 1 cm of the carina. Pulmonary Function Tests (PFTs) show an FEV1 of 2.1 liters (65% of predicted normal) .
C) A 62-year-old lady with a small peripheral mass who has elevated liver enzymes and a computed tomography (CT) scan showing probable metastatic deposits in the liver PFTs show an FEV1 of 3.5 Liters (80% of predicted normal) .
D) A 70-year-old man with a right lower lobe tumor 2 cm in diameter with no evidence of regional adenopathy or distant spread of disease. PFTs show an FEV1 of 0.8 Liters (28% predicted) .
E) A 71-year-old man with a 3 cm tumor obstructing the right lower lobe bronchus. PFTs show an FEV1 of 1.98 L. (43% predicted) .