Answer:
D. Journalists and reformers
Explanation:
They were the journalists in the Progressive Era (1890's to the 1920's). Upton Sinclair and Ida Tarbell were two of them.
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The correct answer among all the other choices is D. The spot is where sound best echoes. This is what the red painted dots note about the spot in Pech Merle. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Answer:I can help you with your homework my bad lol