A 45-year-old African American female complains of shortness of breath and hemoptysis. Her exam is positive for tachypnea and end-inspiratory crackles without wheezing or other evidence of...

A 45-year-old African American female complains of shortness of breath and hemoptysis. Her exam is positive for tachypnea and end-inspiratory crackles without wheezing or other evidence of obstruction, and her chest X-ray shows small nodules, streaks and ground-glass haziness, and bilateral hilar lymph node enlargement. You explain to her that her symptoms may resolve spontaneously, but she may require treatment with steroids for what disease?

 A. Hypersensitivity pneumonitis

 B. Pneumoconiosis

 C. Idiopathic pulmonary fibrosis

 D. Sarcoidosis