You have the right to not employ someone who has access to controlled drugs if they have:

The correct choice highlights the critical importance of ensuring that individuals who have access to controlled substances are thoroughly vetted for any history that may compromise safety and legality. A person who has been denied a DEA registration may pose a significant risk, as this denial typically indicates unresolved issues pertaining to their qualifications or legal standing regarding the handling of controlled substances. This could involve prior criminal behavior, substance abuse problems, or failure to meet professional standards set by the Drug Enforcement Administration.

In the veterinary field, strict compliance with regulations surrounding controlled drugs is essential to prevent misuse, abuse, and potential harm to both animals and people. Therefore, employing someone who does not have the necessary clearance to handle controlled substances poses liability risks and can jeopardize the integrity of veterinary practice.

In contrast, the other options do not necessarily indicate a risk concerning controlled substances. A misdemeanor conviction does not automatically relate to drug handling capability, a degree from a veterinary program suggests qualification rather than disqualification, and experience working in a pharmacy does not inherently disqualify someone from handling controlled drugs if they meet all other necessary legal and professional requirements.