Silicosis leads to decreased lung function and capacity, along with chronic cough as noticeable symptoms. All of these symptoms are interconnected and indicate lung damage due to silica exposure. Therefore, the correct answer is D. All of the above. ;
Silicosis causes noticeable symptoms including decreased lung function, decreased lung capacity, and chronic cough. These symptoms indicate lung damage from silica exposure. Therefore, the correct choice is D. All of the above.
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