What Is Meant When an OSHA Citation Indicates There Has

What is meant when an OSHA citation indicates there has been a willful violation?

A) That a workplace hazard exists that could cause injury or illness that would most likely result in death or serious physical harm, unless the employer did not know or could not have known of the violation
B) That the violation has no direct or immediate relationship to safety or health
C) That a situation in which the most serious injury or illness that would most likely occur from the hazardous condition cannot reasonably cause death or serious illness
D) That the employer knew that a hazardous condition (which violated a standard) existed but made no reasonable effort to eliminate it