Free Multiple Choice Question Respirology

A patient with history of occupational exposure (worked in a silica mine) 20 years back, now presents with 6 month history of cough and weight loss. CXR shows fibrosis of upper lobes. What is the most likely diagnosis?  
 
A)  Pneumonia
B)  Tuberculosis
C)  Mesothelioma
D)  Rapidly progressive silicosis
E) Asbestosis