How did the meat-packing industry respond to reports of unsanitary and unsafe conditions within their companies. a. they asked the government to enact laws to help clean up the industry
b. they shut down their factories and refused to pay workers salaries
c. the launched private investigations to see what changes needed to be made
d. they denied there was a problem and fought against federal oversight

D. they denied there was a problem and fought against federal oversight

Explanation:

When workers and consumers declared that the meat industry was insecure because of bacteria and other pathogens, the industry completely denied these allegations. They did not launch private investigations, because they knew the consumers would not trust them. Instead, they fought their critics. The answer is D. they denied there was a problem and fought against federal oversight.

I think it's B

Explanation:

I deleted impossible answers first :D