What is the maximum amount that osha can impose as a penalty on an employer for each willful violation ?

As of 2016, the biggest penalty OSHA can hand out for each willful violation is $126,000. The largest amount previous to that was $70,000. The maximum amount OSHA can collect for repeated violations is also capped at $126,000 as of 2016. OSHA stands for Occupational Safety and Health Administration, and operates as an official agency of the US Department of Labor.

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Ithink it's choice d (antibiotic resistance)

Your answer is going to be c.