UKMLA PLAB AMC USMLE Prometric MCQ

Question Number 1173
Question:
A 60yr old farmer complained of a chronic cough and progressive dyspnea. A chest x-ray revealed reticulonodular infiltrate throughout the lung.
Pulmonary function studies showed a restrictive pattern with loss of lung volumes, impaired diffusion capacity, decreased compliance, and an exercise-induced hypoxemia
This farmer's symptoms are most likely secondary to the following environmantal hazard

a) a cheese producing process
b) the presence of spores of Bacillus anthracis in the farmer's barn
c) the harvesting of crops in rainy weather
d) the presence of asbestos in the water tanks
e) inhalation of antigenic detergent