[Solved]: An 86-year-old man presented with a 3-week history…

An 86-year-old man presented with a 3-week history of coughing. Chest x-ray showed a cavitary mass in the left upper lobe that was also positron-emission tomography (PET) avid, and a few other small pulmonary nodules. A liver lesion was also identified and confirmed by pathology as metastatic non-small cell lung cancer. The doctor notes that systemic therapy is recommended because of multifocal, metastatic disease. What best summarizes the benefit of targeted therapy over conventional chemotherapy? A. Targeted therapy works faster because it only kills cancer cells. B. Targeted therapy is more effective because it kills all rapidly growing cells. C. Targeted therapy usually has fewer, milder adverse effects. D. Targeted therapy is more reasonably priced than conventional chemotherapy.