Answer:
d. Compel them to make safety improvements
Step-by-step explanation:
OSHA is an agency of the US government that works to maintain a safe and healthy environment for workers and it does this by enforcing standards and doing inspections in which fines are issued when this standards are not met. The idea is that companies maintain standards that fulfill the regulations and like that avoid deaths, injuries and diseases among employees.
According to this, OSHA issues fines against companies which have safety violation in order to compel them to make safety improvements.