Answer:
The best answer for the question: What has the meat-packing industry done about the health concerns and unsanitary conditions associated with their products, would be: B: Denied any wrongdoing and tried to blame the motives of their critics.
Explanation:
The incorrect practices, the unsanitary conditions and health issues that have been present for several decades now in companies related with the meat-packing industry, have been ongoing, despite the alarms raised, and the steps taken to correct these. Not just people in general, but several experts on the matter of public health, have raised their concerns on these matters because they have become aware of the malpractices, especially in meat-packaging plants and slaughterhouses. However, time and time again, representatives of these companies have tried to deny any and all the arguments and proof, that has been risen against them and have said that these accusations are nothing more than the attempts by those who oppose to animal slaughtering, and the consumption of meat, to stop the practice. As of today, we still see meat-packaging companies not accepting any accusations, and continuing with their practices.