A is corrent because OSHA penalties may be both civil and criminal. Civil penalties are as much as $1,000 per violation per day. Criminal penalties are imposed for certain willful violations, and may include fines as high as $10,000 or imprisonment.
B is incorrect because OSHA penalties may also be criminal.
C is incorrect because OSHA penalties may also be civil.
D is incorrect because OSHA penalties may be both civil and criminal.