A miner develops coal worker's pneumonoconiosis (CWP) after years of exposure to coal dust. Which of the following best describes their situation?
a. while progressive in nature, CVP does not significantly affect lifespan.
b. they will show symptoms of pr fund obstructive disease but no evidence of restrictive lung disease.
c. removal from further coal dust exposure will reverse the fibrosis and lead to a complete recovery
d. their pulmonary fibrosis will continue to progress even after they are removed from exposure.