Question 1.

During a routine physical examination, a 22-year-old man with no past medical history is noted to have a non-calcified 1.5 cm solitary pulmonary nodule. The patient is otherwise asymptomatic, and results of the rest of the examination are normal. CT scan shows only the 1.5 cm nodule, which has smooth edges, and no calcification. The next step in the management should be: 

(A) thoracotomy

(B) fiberoptic bronchoscopy

(C) observe and repeat the chest roentgenogram every 6 months for 2 years

(D) percutaneous-needle aspiration