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A. workers often got ill because of the poor working conditions
B. companies were free to put out any products they wanted to
C. many people were killed by the dangerous products
D. industries were not as careful in management as they are today

A. governments and companies had different opinions about the safety of products
B. governments paid little attention to the safety of products
C. government officials often did not listen to scientists
D. in the past no safety laws were introduced by governments