Question

meanwhile coal miners suffered from \black lung\ disease, which turned these organs essential for breathing into stiff, diseased, and useless tissue.
based on this sentence, one can conclude that the author wants the reader to —

• understand the medical issue behind black lung disease
• believe that the industrial revolution was also an age of destruction
• appreciate how much coal miners have sacrificed for humanity

Explanation:

The sentence describes coal miners' suffering from black lung disease, which damages their breathing organs. The third option focuses on the miners' sacrifice (their health) for humanity, aligning with the description of their suffering. The first option is about medical understanding, but the sentence's emphasis is on the miners' plight, not medical details. The second option introduces the Industrial Revolution, which isn't mentioned in the sentence. So the author likely wants readers to appreciate miners' sacrifices.

Answer:

C. appreciate how much coal miners have sacrificed for humanity (assuming the third option is labeled C; if the original options have different labels, adjust accordingly. Based on the given options, the third one is the correct choice.)